Home / 121,563,138.40-182,189,878.80-49,678,338.40

Finding the Fourth Proportional to 121,563,138.40, 182,189,878.80 and 49,678,338.40

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Solution

The fourth proportional to 121,563,138.40, 182,189,878.80 and 49,678,338.40 is: 74,454,234.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,563,138.40 : 182,189,878.80 = 49,678,338.40 : x
  2. Step 2: Convert to fraction form
    121,563,138.40/182,189,878.80 = 49,678,338.40/x
  3. Step 3: Cross multiply
    121,563,138.40x = 182,189,878.80 × 49,678,338.40
  4. Step 4: Simplify right side
    121,563,138.40x = 9,050,890,452,081,386
  5. Step 5: Solve for x
    x = 9,050,890,452,081,386/121,563,138.40
  6. Step 6: Final answer
    x = 74,454,234.82

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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.