Home / 288,735,287.60-433,102,931.40-256,990,545.20

Finding the Fourth Proportional to 288,735,287.60, 433,102,931.40 and 256,990,545.20

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Solution

The fourth proportional to 288,735,287.60, 433,102,931.40 and 256,990,545.20 is: 385,485,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,735,287.60 : 433,102,931.40 = 256,990,545.20 : x
  2. Step 2: Convert to fraction form
    288,735,287.60/433,102,931.40 = 256,990,545.20/x
  3. Step 3: Cross multiply
    288,735,287.60x = 433,102,931.40 × 256,990,545.20
  4. Step 4: Simplify right side
    288,735,287.60x = 111,303,358,468,204,192
  5. Step 5: Solve for x
    x = 111,303,358,468,204,192/288,735,287.60
  6. Step 6: Final answer
    x = 385,485,817.80

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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.