Home / 143,766,350.20-215,523,554.10-86,197,511.80

Finding the Fourth Proportional to 143,766,350.20, 215,523,554.10 and 86,197,511.80

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Solution

The fourth proportional to 143,766,350.20, 215,523,554.10 and 86,197,511.80 is: 129,220,739.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,766,350.20 : 215,523,554.10 = 86,197,511.80 : x
  2. Step 2: Convert to fraction form
    143,766,350.20/215,523,554.10 = 86,197,511.80/x
  3. Step 3: Cross multiply
    143,766,350.20x = 215,523,554.10 × 86,197,511.80
  4. Step 4: Simplify right side
    143,766,350.20x = 18,577,594,097,712,688
  5. Step 5: Solve for x
    x = 18,577,594,097,712,688/143,766,350.20
  6. Step 6: Final answer
    x = 129,220,739.57

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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.