Home / 83,620,133.70-125,430,200.55-66,401,445.30

Finding the Fourth Proportional to 83,620,133.70, 125,430,200.55 and 66,401,445.30

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Solution

The fourth proportional to 83,620,133.70, 125,430,200.55 and 66,401,445.30 is: 99,602,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,620,133.70 : 125,430,200.55 = 66,401,445.30 : x
  2. Step 2: Convert to fraction form
    83,620,133.70/125,430,200.55 = 66,401,445.30/x
  3. Step 3: Cross multiply
    83,620,133.70x = 125,430,200.55 × 66,401,445.30
  4. Step 4: Simplify right side
    83,620,133.70x = 8,328,746,600,788,854
  5. Step 5: Solve for x
    x = 8,328,746,600,788,854/83,620,133.70
  6. Step 6: Final answer
    x = 99,602,167.95

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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.