Home / 86,617,511.90-129,883,752.38-42,847,699.04

Finding the Fourth Proportional to 86,617,511.90, 129,883,752.38 and 42,847,699.04

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Solution

The fourth proportional to 86,617,511.90, 129,883,752.38 and 42,847,699.04 is: 64,250,517.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,617,511.90 : 129,883,752.38 = 42,847,699.04 : x
  2. Step 2: Convert to fraction form
    86,617,511.90/129,883,752.38 = 42,847,699.04/x
  3. Step 3: Cross multiply
    86,617,511.90x = 129,883,752.38 × 42,847,699.04
  4. Step 4: Simplify right side
    86,617,511.90x = 5,565,219,931,300,466
  5. Step 5: Solve for x
    x = 5,565,219,931,300,466/86,617,511.90
  6. Step 6: Final answer
    x = 64,250,517.12

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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.