Home / 698,533,614.60-1,047,800,421.90-664,521,390.60

Finding the Fourth Proportional to 698,533,614.60, 1,047,800,421.90 and 664,521,390.60

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Solution

The fourth proportional to 698,533,614.60, 1,047,800,421.90 and 664,521,390.60 is: 996,782,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,533,614.60 : 1,047,800,421.90 = 664,521,390.60 : x
  2. Step 2: Convert to fraction form
    698,533,614.60/1,047,800,421.90 = 664,521,390.60/x
  3. Step 3: Cross multiply
    698,533,614.60x = 1,047,800,421.90 × 664,521,390.60
  4. Step 4: Simplify right side
    698,533,614.60x = 696,285,793,432,254,720
  5. Step 5: Solve for x
    x = 696,285,793,432,254,720/698,533,614.60
  6. Step 6: Final answer
    x = 996,782,085.90

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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.