Home / 311,931,000.70-468,904,270.65-287,744,530.30

Finding the Fourth Proportional to 311,931,000.70, 468,904,270.65 and 287,744,530.30

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Solution

The fourth proportional to 311,931,000.70, 468,904,270.65 and 287,744,530.30 is: 432,546,424.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,931,000.70 : 468,904,270.65 = 287,744,530.30 : x
  2. Step 2: Convert to fraction form
    311,931,000.70/468,904,270.65 = 287,744,530.30/x
  3. Step 3: Cross multiply
    311,931,000.70x = 468,904,270.65 × 287,744,530.30
  4. Step 4: Simplify right side
    311,931,000.70x = 134,924,639,113,848,320
  5. Step 5: Solve for x
    x = 134,924,639,113,848,320/311,931,000.70
  6. Step 6: Final answer
    x = 432,546,424.73

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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.