Home / 215,604,363.60-323,406,545.40-86,147,960.40

Finding the Fourth Proportional to 215,604,363.60, 323,406,545.40 and 86,147,960.40

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Solution

The fourth proportional to 215,604,363.60, 323,406,545.40 and 86,147,960.40 is: 129,221,940.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,604,363.60 : 323,406,545.40 = 86,147,960.40 : x
  2. Step 2: Convert to fraction form
    215,604,363.60/323,406,545.40 = 86,147,960.40/x
  3. Step 3: Cross multiply
    215,604,363.60x = 323,406,545.40 × 86,147,960.40
  4. Step 4: Simplify right side
    215,604,363.60x = 27,860,814,266,220,004
  5. Step 5: Solve for x
    x = 27,860,814,266,220,004/215,604,363.60
  6. Step 6: Final answer
    x = 129,221,940.60

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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.