Home / 86,102,486.10-129,154,204.82-21,406,291.25

Finding the Fourth Proportional to 86,102,486.10, 129,154,204.82 and 21,406,291.25

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Solution

The fourth proportional to 86,102,486.10, 129,154,204.82 and 21,406,291.25 is: 32,109,555.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,102,486.10 : 129,154,204.82 = 21,406,291.25 : x
  2. Step 2: Convert to fraction form
    86,102,486.10/129,154,204.82 = 21,406,291.25/x
  3. Step 3: Cross multiply
    86,102,486.10x = 129,154,204.82 × 21,406,291.25
  4. Step 4: Simplify right side
    86,102,486.10x = 2,764,712,523,946,819
  5. Step 5: Solve for x
    x = 2,764,712,523,946,819/86,102,486.10
  6. Step 6: Final answer
    x = 32,109,555.13

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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.