Home / 139,341,685.32-208,895,610.96-61,606,038.78

Finding the Fourth Proportional to 139,341,685.32, 208,895,610.96 and 61,606,038.78

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Solution

The fourth proportional to 139,341,685.32, 208,895,610.96 and 61,606,038.78 is: 92,357,366.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,341,685.32 : 208,895,610.96 = 61,606,038.78 : x
  2. Step 2: Convert to fraction form
    139,341,685.32/208,895,610.96 = 61,606,038.78/x
  3. Step 3: Cross multiply
    139,341,685.32x = 208,895,610.96 × 61,606,038.78
  4. Step 4: Simplify right side
    139,341,685.32x = 12,869,231,109,773,554
  5. Step 5: Solve for x
    x = 12,869,231,109,773,554/139,341,685.32
  6. Step 6: Final answer
    x = 92,357,366.57

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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.