Home / 15,406,989.95-21,261,384.70-8,531,324.39

Finding the Fourth Proportional to 15,406,989.95, 21,261,384.70 and 8,531,324.39

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Solution

The fourth proportional to 15,406,989.95, 21,261,384.70 and 8,531,324.39 is: 11,773,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,989.95 : 21,261,384.70 = 8,531,324.39 : x
  2. Step 2: Convert to fraction form
    15,406,989.95/21,261,384.70 = 8,531,324.39/x
  3. Step 3: Cross multiply
    15,406,989.95x = 21,261,384.70 × 8,531,324.39
  4. Step 4: Simplify right side
    15,406,989.95x = 181,387,769,856,282.84
  5. Step 5: Solve for x
    x = 181,387,769,856,282.84/15,406,989.95
  6. Step 6: Final answer
    x = 11,773,082.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.