Home / 86,270,169.88-129,406,398.90-28,762,459.52

Finding the Fourth Proportional to 86,270,169.88, 129,406,398.90 and 28,762,459.52

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Solution

The fourth proportional to 86,270,169.88, 129,406,398.90 and 28,762,459.52 is: 43,144,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,270,169.88 : 129,406,398.90 = 28,762,459.52 : x
  2. Step 2: Convert to fraction form
    86,270,169.88/129,406,398.90 = 28,762,459.52/x
  3. Step 3: Cross multiply
    86,270,169.88x = 129,406,398.90 × 28,762,459.52
  4. Step 4: Simplify right side
    86,270,169.88x = 3,722,046,309,990,222.50
  5. Step 5: Solve for x
    x = 3,722,046,309,990,222.50/86,270,169.88
  6. Step 6: Final answer
    x = 43,144,070.72

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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.