Home / 38,718,926.96-53,430,482.36-21,077,462.72

Finding the Fourth Proportional to 38,718,926.96, 53,430,482.36 and 21,077,462.72

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Solution

The fourth proportional to 38,718,926.96, 53,430,482.36 and 21,077,462.72 is: 29,086,007.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,718,926.96 : 53,430,482.36 = 21,077,462.72 : x
  2. Step 2: Convert to fraction form
    38,718,926.96/53,430,482.36 = 21,077,462.72/x
  3. Step 3: Cross multiply
    38,718,926.96x = 53,430,482.36 × 21,077,462.72
  4. Step 4: Simplify right side
    38,718,926.96x = 1,126,179,000,054,517.50
  5. Step 5: Solve for x
    x = 1,126,179,000,054,517.50/38,718,926.96
  6. Step 6: Final answer
    x = 29,086,007.50

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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.