Home / 80,416,055,655.60-120,624,083,483.40-72,702,083,252.40

Finding the Fourth Proportional to 80,416,055,655.60, 120,624,083,483.40 and 72,702,083,252.40

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Solution

The fourth proportional to 80,416,055,655.60, 120,624,083,483.40 and 72,702,083,252.40 is: 109,053,124,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,416,055,655.60 : 120,624,083,483.40 = 72,702,083,252.40 : x
  2. Step 2: Convert to fraction form
    80,416,055,655.60/120,624,083,483.40 = 72,702,083,252.40/x
  3. Step 3: Cross multiply
    80,416,055,655.60x = 120,624,083,483.40 × 72,702,083,252.40
  4. Step 4: Simplify right side
    80,416,055,655.60x = 8,769,622,159,654,593,232,896
  5. Step 5: Solve for x
    x = 8,769,622,159,654,593,232,896/80,416,055,655.60
  6. Step 6: Final answer
    x = 109,053,124,878.60

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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.