Home / 385,948,934.60-578,867,414.70-113,291,270.60

Finding the Fourth Proportional to 385,948,934.60, 578,867,414.70 and 113,291,270.60

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Solution

The fourth proportional to 385,948,934.60, 578,867,414.70 and 113,291,270.60 is: 169,920,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,948,934.60 : 578,867,414.70 = 113,291,270.60 : x
  2. Step 2: Convert to fraction form
    385,948,934.60/578,867,414.70 = 113,291,270.60/x
  3. Step 3: Cross multiply
    385,948,934.60x = 578,867,414.70 × 113,291,270.60
  4. Step 4: Simplify right side
    385,948,934.60x = 65,580,624,920,300,120
  5. Step 5: Solve for x
    x = 65,580,624,920,300,120/385,948,934.60
  6. Step 6: Final answer
    x = 169,920,471.44

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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.