Home / 784,981,641.60-1,177,472,462.40-478,115,798.40

Finding the Fourth Proportional to 784,981,641.60, 1,177,472,462.40 and 478,115,798.40

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Solution

The fourth proportional to 784,981,641.60, 1,177,472,462.40 and 478,115,798.40 is: 717,173,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,981,641.60 : 1,177,472,462.40 = 478,115,798.40 : x
  2. Step 2: Convert to fraction form
    784,981,641.60/1,177,472,462.40 = 478,115,798.40/x
  3. Step 3: Cross multiply
    784,981,641.60x = 1,177,472,462.40 × 478,115,798.40
  4. Step 4: Simplify right side
    784,981,641.60x = 562,968,186,454,390,016
  5. Step 5: Solve for x
    x = 562,968,186,454,390,016/784,981,641.60
  6. Step 6: Final answer
    x = 717,173,697.60

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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.