Home / 38,536,438,794.91-53,175,972,271.64-21,390,014,867.56

Finding the Fourth Proportional to 38,536,438,794.91, 53,175,972,271.64 and 21,390,014,867.56

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Solution

The fourth proportional to 38,536,438,794.91, 53,175,972,271.64 and 21,390,014,867.56 is: 29,515,826,398.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,536,438,794.91 : 53,175,972,271.64 = 21,390,014,867.56 : x
  2. Step 2: Convert to fraction form
    38,536,438,794.91/53,175,972,271.64 = 21,390,014,867.56/x
  3. Step 3: Cross multiply
    38,536,438,794.91x = 53,175,972,271.64 × 21,390,014,867.56
  4. Step 4: Simplify right side
    38,536,438,794.91x = 1,137,434,837,487,071,395,840
  5. Step 5: Solve for x
    x = 1,137,434,837,487,071,395,840/38,536,438,794.91
  6. Step 6: Final answer
    x = 29,515,826,398.50

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Double scale
Find fourth proportional to 38,536,438,795.91, 53,175,972,273.01 and 21,390,014,868.56
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.