Home / 28,901,487.92-39,885,203.32-15,849,214.96

Finding the Fourth Proportional to 28,901,487.92, 39,885,203.32 and 15,849,214.96

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Solution

The fourth proportional to 28,901,487.92, 39,885,203.32 and 15,849,214.96 is: 21,872,547.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901,487.92 : 39,885,203.32 = 15,849,214.96 : x
  2. Step 2: Convert to fraction form
    28,901,487.92/39,885,203.32 = 15,849,214.96/x
  3. Step 3: Cross multiply
    28,901,487.92x = 39,885,203.32 × 15,849,214.96
  4. Step 4: Simplify right side
    28,901,487.92x = 632,149,161,141,985.75
  5. Step 5: Solve for x
    x = 632,149,161,141,985.75/28,901,487.92
  6. Step 6: Final answer
    x = 21,872,547.29

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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.