Home / 77,253,401.80-115,880,102.70-76,059,008.20

Finding the Fourth Proportional to 77,253,401.80, 115,880,102.70 and 76,059,008.20

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Solution

The fourth proportional to 77,253,401.80, 115,880,102.70 and 76,059,008.20 is: 114,088,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,253,401.80 : 115,880,102.70 = 76,059,008.20 : x
  2. Step 2: Convert to fraction form
    77,253,401.80/115,880,102.70 = 76,059,008.20/x
  3. Step 3: Cross multiply
    77,253,401.80x = 115,880,102.70 × 76,059,008.20
  4. Step 4: Simplify right side
    77,253,401.80x = 8,813,725,681,476,143
  5. Step 5: Solve for x
    x = 8,813,725,681,476,143/77,253,401.80
  6. Step 6: Final answer
    x = 114,088,512.30

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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.