Home / 120,753,699.40-181,130,549.10-80,442,915.40

Finding the Fourth Proportional to 120,753,699.40, 181,130,549.10 and 80,442,915.40

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Solution

The fourth proportional to 120,753,699.40, 181,130,549.10 and 80,442,915.40 is: 120,664,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,753,699.40 : 181,130,549.10 = 80,442,915.40 : x
  2. Step 2: Convert to fraction form
    120,753,699.40/181,130,549.10 = 80,442,915.40/x
  3. Step 3: Cross multiply
    120,753,699.40x = 181,130,549.10 × 80,442,915.40
  4. Step 4: Simplify right side
    120,753,699.40x = 14,570,669,437,606,846
  5. Step 5: Solve for x
    x = 14,570,669,437,606,846/120,753,699.40
  6. Step 6: Final answer
    x = 120,664,373.10

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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.