Home / 698,533,613.60-1,047,800,420.40-664,521,389.60

Finding the Fourth Proportional to 698,533,613.60, 1,047,800,420.40 and 664,521,389.60

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Solution

The fourth proportional to 698,533,613.60, 1,047,800,420.40 and 664,521,389.60 is: 996,782,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,533,613.60 : 1,047,800,420.40 = 664,521,389.60 : x
  2. Step 2: Convert to fraction form
    698,533,613.60/1,047,800,420.40 = 664,521,389.60/x
  3. Step 3: Cross multiply
    698,533,613.60x = 1,047,800,420.40 × 664,521,389.60
  4. Step 4: Simplify right side
    698,533,613.60x = 696,285,791,387,672,192
  5. Step 5: Solve for x
    x = 696,285,791,387,672,192/698,533,613.60
  6. Step 6: Final answer
    x = 996,782,084.40

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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.