Home / 81,420,314.90-122,130,472.35-36,070,682.90

Finding the Fourth Proportional to 81,420,314.90, 122,130,472.35 and 36,070,682.90

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Solution

The fourth proportional to 81,420,314.90, 122,130,472.35 and 36,070,682.90 is: 54,106,024.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,420,314.90 : 122,130,472.35 = 36,070,682.90 : x
  2. Step 2: Convert to fraction form
    81,420,314.90/122,130,472.35 = 36,070,682.90/x
  3. Step 3: Cross multiply
    81,420,314.90x = 122,130,472.35 × 36,070,682.90
  4. Step 4: Simplify right side
    81,420,314.90x = 4,405,329,540,564,067.50
  5. Step 5: Solve for x
    x = 4,405,329,540,564,067.50/81,420,314.90
  6. Step 6: Final answer
    x = 54,106,024.35

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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.