Home / 120,988,701.70-181,482,775.72-51,856,679.03

Finding the Fourth Proportional to 120,988,701.70, 181,482,775.72 and 51,856,679.03

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Solution

The fourth proportional to 120,988,701.70, 181,482,775.72 and 51,856,679.03 is: 77,784,899.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,988,701.70 : 181,482,775.72 = 51,856,679.03 : x
  2. Step 2: Convert to fraction form
    120,988,701.70/181,482,775.72 = 51,856,679.03/x
  3. Step 3: Cross multiply
    120,988,701.70x = 181,482,775.72 × 51,856,679.03
  4. Step 4: Simplify right side
    120,988,701.70x = 9,411,094,049,985,518
  5. Step 5: Solve for x
    x = 9,411,094,049,985,518/120,988,701.70
  6. Step 6: Final answer
    x = 77,784,899.89

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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.