Home / 12,119,204.38-16,709,374.90-7,761,125.74

Finding the Fourth Proportional to 12,119,204.38, 16,709,374.90 and 7,761,125.74

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Solution

The fourth proportional to 12,119,204.38, 16,709,374.90 and 7,761,125.74 is: 10,700,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119,204.38 : 16,709,374.90 = 7,761,125.74 : x
  2. Step 2: Convert to fraction form
    12,119,204.38/16,709,374.90 = 7,761,125.74/x
  3. Step 3: Cross multiply
    12,119,204.38x = 16,709,374.90 × 7,761,125.74
  4. Step 4: Simplify right side
    12,119,204.38x = 129,683,559,635,699.94
  5. Step 5: Solve for x
    x = 129,683,559,635,699.94/12,119,204.38
  6. Step 6: Final answer
    x = 10,700,666.11

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1.5x scale

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.