Home / 354,377,813.40-531,566,720.10-217,619,746.20

Finding the Fourth Proportional to 354,377,813.40, 531,566,720.10 and 217,619,746.20

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Solution

The fourth proportional to 354,377,813.40, 531,566,720.10 and 217,619,746.20 is: 326,429,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,377,813.40 : 531,566,720.10 = 217,619,746.20 : x
  2. Step 2: Convert to fraction form
    354,377,813.40/531,566,720.10 = 217,619,746.20/x
  3. Step 3: Cross multiply
    354,377,813.40x = 531,566,720.10 × 217,619,746.20
  4. Step 4: Simplify right side
    354,377,813.40x = 115,679,414,716,528,432
  5. Step 5: Solve for x
    x = 115,679,414,716,528,432/354,377,813.40
  6. Step 6: Final answer
    x = 326,429,619.30

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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.