Home / 342,064,420.20-513,091,818.90-83,280,209.40

Finding the Fourth Proportional to 342,064,420.20, 513,091,818.90 and 83,280,209.40

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Solution

The fourth proportional to 342,064,420.20, 513,091,818.90 and 83,280,209.40 is: 124,919,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,064,420.20 : 513,091,818.90 = 83,280,209.40 : x
  2. Step 2: Convert to fraction form
    342,064,420.20/513,091,818.90 = 83,280,209.40/x
  3. Step 3: Cross multiply
    342,064,420.20x = 513,091,818.90 × 83,280,209.40
  4. Step 4: Simplify right side
    342,064,420.20x = 42,730,394,119,418,880
  5. Step 5: Solve for x
    x = 42,730,394,119,418,880/342,064,420.20
  6. Step 6: Final answer
    x = 124,919,142.70

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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.