Home / 354,294,743.40-531,442,115.10-243,329,862.60

Finding the Fourth Proportional to 354,294,743.40, 531,442,115.10 and 243,329,862.60

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Solution

The fourth proportional to 354,294,743.40, 531,442,115.10 and 243,329,862.60 is: 364,994,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,743.40 : 531,442,115.10 = 243,329,862.60 : x
  2. Step 2: Convert to fraction form
    354,294,743.40/531,442,115.10 = 243,329,862.60/x
  3. Step 3: Cross multiply
    354,294,743.40x = 531,442,115.10 × 243,329,862.60
  4. Step 4: Simplify right side
    354,294,743.40x = 129,315,736,847,136,384
  5. Step 5: Solve for x
    x = 129,315,736,847,136,384/354,294,743.40
  6. Step 6: Final answer
    x = 364,994,793.90

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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.