Home / 354,377,639.40-531,566,459.10-217,619,572.20

Finding the Fourth Proportional to 354,377,639.40, 531,566,459.10 and 217,619,572.20

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Solution

The fourth proportional to 354,377,639.40, 531,566,459.10 and 217,619,572.20 is: 326,429,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,377,639.40 : 531,566,459.10 = 217,619,572.20 : x
  2. Step 2: Convert to fraction form
    354,377,639.40/531,566,459.10 = 217,619,572.20/x
  3. Step 3: Cross multiply
    354,377,639.40x = 531,566,459.10 × 217,619,572.20
  4. Step 4: Simplify right side
    354,377,639.40x = 115,679,265,425,210,800
  5. Step 5: Solve for x
    x = 115,679,265,425,210,800/354,377,639.40
  6. Step 6: Final answer
    x = 326,429,358.30

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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.