Home / 700,543,917.90-1,050,815,876.85-442,901,321.10

Finding the Fourth Proportional to 700,543,917.90, 1,050,815,876.85 and 442,901,321.10

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Solution

The fourth proportional to 700,543,917.90, 1,050,815,876.85 and 442,901,321.10 is: 664,351,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,543,917.90 : 1,050,815,876.85 = 442,901,321.10 : x
  2. Step 2: Convert to fraction form
    700,543,917.90/1,050,815,876.85 = 442,901,321.10/x
  3. Step 3: Cross multiply
    700,543,917.90x = 1,050,815,876.85 × 442,901,321.10
  4. Step 4: Simplify right side
    700,543,917.90x = 465,407,740,089,719,936
  5. Step 5: Solve for x
    x = 465,407,740,089,719,936/700,543,917.90
  6. Step 6: Final answer
    x = 664,351,981.65

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Double scale
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1.5x scale

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.