Home / 660,165,200.10-990,247,800.15-200,043,582.30

Finding the Fourth Proportional to 660,165,200.10, 990,247,800.15 and 200,043,582.30

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Solution

The fourth proportional to 660,165,200.10, 990,247,800.15 and 200,043,582.30 is: 300,065,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,165,200.10 : 990,247,800.15 = 200,043,582.30 : x
  2. Step 2: Convert to fraction form
    660,165,200.10/990,247,800.15 = 200,043,582.30/x
  3. Step 3: Cross multiply
    660,165,200.10x = 990,247,800.15 × 200,043,582.30
  4. Step 4: Simplify right side
    660,165,200.10x = 198,092,717,306,700,480
  5. Step 5: Solve for x
    x = 198,092,717,306,700,480/660,165,200.10
  6. Step 6: Final answer
    x = 300,065,373.45

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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.