Home / 83,620,006.20-125,430,009.30-66,401,317.80

Finding the Fourth Proportional to 83,620,006.20, 125,430,009.30 and 66,401,317.80

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Solution

The fourth proportional to 83,620,006.20, 125,430,009.30 and 66,401,317.80 is: 99,601,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,620,006.20 : 125,430,009.30 = 66,401,317.80 : x
  2. Step 2: Convert to fraction form
    83,620,006.20/125,430,009.30 = 66,401,317.80/x
  3. Step 3: Cross multiply
    83,620,006.20x = 125,430,009.30 × 66,401,317.80
  4. Step 4: Simplify right side
    83,620,006.20x = 8,328,717,909,186,255
  5. Step 5: Solve for x
    x = 8,328,717,909,186,255/83,620,006.20
  6. Step 6: Final answer
    x = 99,601,976.70

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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.