Home / 99,827,998.20-149,741,997.30-70,602,679.80

Finding the Fourth Proportional to 99,827,998.20, 149,741,997.30 and 70,602,679.80

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Solution

The fourth proportional to 99,827,998.20, 149,741,997.30 and 70,602,679.80 is: 105,904,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,827,998.20 : 149,741,997.30 = 70,602,679.80 : x
  2. Step 2: Convert to fraction form
    99,827,998.20/149,741,997.30 = 70,602,679.80/x
  3. Step 3: Cross multiply
    99,827,998.20x = 149,741,997.30 × 70,602,679.80
  4. Step 4: Simplify right side
    99,827,998.20x = 10,572,186,287,984,364
  5. Step 5: Solve for x
    x = 10,572,186,287,984,364/99,827,998.20
  6. Step 6: Final answer
    x = 105,904,019.70

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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.