Home / 99,645,640.30-149,492,080.05-51,130,981.90

Finding the Fourth Proportional to 99,645,640.30, 149,492,080.05 and 51,130,981.90

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Solution

The fourth proportional to 99,645,640.30, 149,492,080.05 and 51,130,981.90 is: 76,708,592.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645,640.30 : 149,492,080.05 = 51,130,981.90 : x
  2. Step 2: Convert to fraction form
    99,645,640.30/149,492,080.05 = 51,130,981.90/x
  3. Step 3: Cross multiply
    99,645,640.30x = 149,492,080.05 × 51,130,981.90
  4. Step 4: Simplify right side
    99,645,640.30x = 7,643,676,839,229,901
  5. Step 5: Solve for x
    x = 7,643,676,839,229,901/99,645,640.30
  6. Step 6: Final answer
    x = 76,708,592.73

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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.