Home / 82,679,404.20-124,019,106.30-64,743,839.40

Finding the Fourth Proportional to 82,679,404.20, 124,019,106.30 and 64,743,839.40

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Solution

The fourth proportional to 82,679,404.20, 124,019,106.30 and 64,743,839.40 is: 97,115,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,679,404.20 : 124,019,106.30 = 64,743,839.40 : x
  2. Step 2: Convert to fraction form
    82,679,404.20/124,019,106.30 = 64,743,839.40/x
  3. Step 3: Cross multiply
    82,679,404.20x = 124,019,106.30 × 64,743,839.40
  4. Step 4: Simplify right side
    82,679,404.20x = 8,029,473,100,818,728
  5. Step 5: Solve for x
    x = 8,029,473,100,818,728/82,679,404.20
  6. Step 6: Final answer
    x = 97,115,759.10

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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.