Home / 86,156,947.30-129,235,420.95-61,970,476.90

Finding the Fourth Proportional to 86,156,947.30, 129,235,420.95 and 61,970,476.90

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Solution

The fourth proportional to 86,156,947.30, 129,235,420.95 and 61,970,476.90 is: 92,955,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,156,947.30 : 129,235,420.95 = 61,970,476.90 : x
  2. Step 2: Convert to fraction form
    86,156,947.30/129,235,420.95 = 61,970,476.90/x
  3. Step 3: Cross multiply
    86,156,947.30x = 129,235,420.95 × 61,970,476.90
  4. Step 4: Simplify right side
    86,156,947.30x = 8,008,780,668,643,751
  5. Step 5: Solve for x
    x = 8,008,780,668,643,751/86,156,947.30
  6. Step 6: Final answer
    x = 92,955,715.35

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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.