Home / 187,812,007.10-281,718,010.65-85,775,335.10

Finding the Fourth Proportional to 187,812,007.10, 281,718,010.65 and 85,775,335.10

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Solution

The fourth proportional to 187,812,007.10, 281,718,010.65 and 85,775,335.10 is: 128,663,002.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,812,007.10 : 281,718,010.65 = 85,775,335.10 : x
  2. Step 2: Convert to fraction form
    187,812,007.10/281,718,010.65 = 85,775,335.10/x
  3. Step 3: Cross multiply
    187,812,007.10x = 281,718,010.65 × 85,775,335.10
  4. Step 4: Simplify right side
    187,812,007.10x = 24,164,456,767,209,116
  5. Step 5: Solve for x
    x = 24,164,456,767,209,116/187,812,007.10
  6. Step 6: Final answer
    x = 128,663,002.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.