Home / 28,466,635,228.88-39,283,106,094.90-15,605,835,437.72

Finding the Fourth Proportional to 28,466,635,228.88, 39,283,106,094.90 and 15,605,835,437.72

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Solution

The fourth proportional to 28,466,635,228.88, 39,283,106,094.90 and 15,605,835,437.72 is: 21,535,586,635.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466,635,228.88 : 39,283,106,094.90 = 15,605,835,437.72 : x
  2. Step 2: Convert to fraction form
    28,466,635,228.88/39,283,106,094.90 = 15,605,835,437.72/x
  3. Step 3: Cross multiply
    28,466,635,228.88x = 39,283,106,094.90 × 15,605,835,437.72
  4. Step 4: Simplify right side
    28,466,635,228.88x = 613,045,689,199,308,570,624
  5. Step 5: Solve for x
    x = 613,045,689,199,308,570,624/28,466,635,228.88
  6. Step 6: Final answer
    x = 21,535,586,635.74

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Double scale
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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.