Home / 28,688,463.77-39,588,925.16-15,635,441.75

Finding the Fourth Proportional to 28,688,463.77, 39,588,925.16 and 15,635,441.75

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Solution

The fourth proportional to 28,688,463.77, 39,588,925.16 and 15,635,441.75 is: 21,576,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688,463.77 : 39,588,925.16 = 15,635,441.75 : x
  2. Step 2: Convert to fraction form
    28,688,463.77/39,588,925.16 = 15,635,441.75/x
  3. Step 3: Cross multiply
    28,688,463.77x = 39,588,925.16 × 15,635,441.75
  4. Step 4: Simplify right side
    28,688,463.77x = 618,990,333,125,433.38
  5. Step 5: Solve for x
    x = 618,990,333,125,433.38/28,688,463.77
  6. Step 6: Final answer
    x = 21,576,280.21

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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.