Home / 686,016,470.60-1,029,024,705.90-395,778,825.80

Finding the Fourth Proportional to 686,016,470.60, 1,029,024,705.90 and 395,778,825.80

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Solution

The fourth proportional to 686,016,470.60, 1,029,024,705.90 and 395,778,825.80 is: 593,668,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,016,470.60 : 1,029,024,705.90 = 395,778,825.80 : x
  2. Step 2: Convert to fraction form
    686,016,470.60/1,029,024,705.90 = 395,778,825.80/x
  3. Step 3: Cross multiply
    686,016,470.60x = 1,029,024,705.90 × 395,778,825.80
  4. Step 4: Simplify right side
    686,016,470.60x = 407,266,189,820,292,352
  5. Step 5: Solve for x
    x = 407,266,189,820,292,352/686,016,470.60
  6. Step 6: Final answer
    x = 593,668,238.70

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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.