Home / 387,829,793.60-581,744,690.40-311,302,289.60

Finding the Fourth Proportional to 387,829,793.60, 581,744,690.40 and 311,302,289.60

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Solution

The fourth proportional to 387,829,793.60, 581,744,690.40 and 311,302,289.60 is: 466,953,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,829,793.60 : 581,744,690.40 = 311,302,289.60 : x
  2. Step 2: Convert to fraction form
    387,829,793.60/581,744,690.40 = 311,302,289.60/x
  3. Step 3: Cross multiply
    387,829,793.60x = 581,744,690.40 × 311,302,289.60
  4. Step 4: Simplify right side
    387,829,793.60x = 181,098,454,084,163,136
  5. Step 5: Solve for x
    x = 181,098,454,084,163,136/387,829,793.60
  6. Step 6: Final answer
    x = 466,953,434.40

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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.