Home / 698,565,019.20-1,047,847,528.80-207,354,102.90

Finding the Fourth Proportional to 698,565,019.20, 1,047,847,528.80 and 207,354,102.90

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Solution

The fourth proportional to 698,565,019.20, 1,047,847,528.80 and 207,354,102.90 is: 311,031,154.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,565,019.20 : 1,047,847,528.80 = 207,354,102.90 : x
  2. Step 2: Convert to fraction form
    698,565,019.20/1,047,847,528.80 = 207,354,102.90/x
  3. Step 3: Cross multiply
    698,565,019.20x = 1,047,847,528.80 × 207,354,102.90
  4. Step 4: Simplify right side
    698,565,019.20x = 217,275,484,310,305,920
  5. Step 5: Solve for x
    x = 217,275,484,310,305,920/698,565,019.20
  6. Step 6: Final answer
    x = 311,031,154.35

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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.