Home / 646,812,129.60-970,218,194.40-493,757,121.60

Finding the Fourth Proportional to 646,812,129.60, 970,218,194.40 and 493,757,121.60

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Solution

The fourth proportional to 646,812,129.60, 970,218,194.40 and 493,757,121.60 is: 740,635,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,812,129.60 : 970,218,194.40 = 493,757,121.60 : x
  2. Step 2: Convert to fraction form
    646,812,129.60/970,218,194.40 = 493,757,121.60/x
  3. Step 3: Cross multiply
    646,812,129.60x = 970,218,194.40 × 493,757,121.60
  4. Step 4: Simplify right side
    646,812,129.60x = 479,052,142,990,893,248
  5. Step 5: Solve for x
    x = 479,052,142,990,893,248/646,812,129.60
  6. Step 6: Final answer
    x = 740,635,682.40

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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.