Home / 28,901,355.86-39,884,418.56-15,847,836.30

Finding the Fourth Proportional to 28,901,355.86, 39,884,418.56 and 15,847,836.30

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Solution

The fourth proportional to 28,901,355.86, 39,884,418.56 and 15,847,836.30 is: 21,870,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901,355.86 : 39,884,418.56 = 15,847,836.30 : x
  2. Step 2: Convert to fraction form
    28,901,355.86/39,884,418.56 = 15,847,836.30/x
  3. Step 3: Cross multiply
    28,901,355.86x = 39,884,418.56 × 15,847,836.30
  4. Step 4: Simplify right side
    28,901,355.86x = 632,081,736,299,181.38
  5. Step 5: Solve for x
    x = 632,081,736,299,181.38/28,901,355.86
  6. Step 6: Final answer
    x = 21,870,314.30

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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.