Home / 869,149,740.10-1,304,298,920.55-409,219,423.30

Finding the Fourth Proportional to 869,149,740.10, 1,304,298,920.55 and 409,219,423.30

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Solution

The fourth proportional to 869,149,740.10, 1,304,298,920.55 and 409,219,423.30 is: 614,099,535.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,149,740.10 : 1,304,298,920.55 = 409,219,423.30 : x
  2. Step 2: Convert to fraction form
    869,149,740.10/1,304,298,920.55 = 409,219,423.30/x
  3. Step 3: Cross multiply
    869,149,740.10x = 1,304,298,920.55 × 409,219,423.30
  4. Step 4: Simplify right side
    869,149,740.10x = 533,744,452,078,283,520
  5. Step 5: Solve for x
    x = 533,744,452,078,283,520/869,149,740.10
  6. Step 6: Final answer
    x = 614,099,535.96

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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.