Home / 228,007,013.72-314,650,142.57-123,585,155.78

Finding the Fourth Proportional to 228,007,013.72, 314,650,142.57 and 123,585,155.78

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Solution

The fourth proportional to 228,007,013.72, 314,650,142.57 and 123,585,155.78 is: 170,547,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,007,013.72 : 314,650,142.57 = 123,585,155.78 : x
  2. Step 2: Convert to fraction form
    228,007,013.72/314,650,142.57 = 123,585,155.78/x
  3. Step 3: Cross multiply
    228,007,013.72x = 314,650,142.57 × 123,585,155.78
  4. Step 4: Simplify right side
    228,007,013.72x = 38,886,086,884,448,376
  5. Step 5: Solve for x
    x = 38,886,086,884,448,376/228,007,013.72
  6. Step 6: Final answer
    x = 170,547,766.28

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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.