Home / 96,788,001.20-145,182,001.80-86,206,420.40

Finding the Fourth Proportional to 96,788,001.20, 145,182,001.80 and 86,206,420.40

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Solution

The fourth proportional to 96,788,001.20, 145,182,001.80 and 86,206,420.40 is: 129,309,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,788,001.20 : 145,182,001.80 = 86,206,420.40 : x
  2. Step 2: Convert to fraction form
    96,788,001.20/145,182,001.80 = 86,206,420.40/x
  3. Step 3: Cross multiply
    96,788,001.20x = 145,182,001.80 × 86,206,420.40
  4. Step 4: Simplify right side
    96,788,001.20x = 12,515,620,681,684,358
  5. Step 5: Solve for x
    x = 12,515,620,681,684,358/96,788,001.20
  6. Step 6: Final answer
    x = 129,309,630.60

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1.5x scale

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.