Home / 215,604,326.60-323,406,489.90-86,147,923.40

Finding the Fourth Proportional to 215,604,326.60, 323,406,489.90 and 86,147,923.40

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Solution

The fourth proportional to 215,604,326.60, 323,406,489.90 and 86,147,923.40 is: 129,221,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,604,326.60 : 323,406,489.90 = 86,147,923.40 : x
  2. Step 2: Convert to fraction form
    215,604,326.60/323,406,489.90 = 86,147,923.40/x
  3. Step 3: Cross multiply
    215,604,326.60x = 323,406,489.90 × 86,147,923.40
  4. Step 4: Simplify right side
    215,604,326.60x = 27,860,797,518,968,072
  5. Step 5: Solve for x
    x = 27,860,797,518,968,072/215,604,326.60
  6. Step 6: Final answer
    x = 129,221,885.10

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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.