Home / 82,998,011.70-124,497,017.55-39,856,812.30

Finding the Fourth Proportional to 82,998,011.70, 124,497,017.55 and 39,856,812.30

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Solution

The fourth proportional to 82,998,011.70, 124,497,017.55 and 39,856,812.30 is: 59,785,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,998,011.70 : 124,497,017.55 = 39,856,812.30 : x
  2. Step 2: Convert to fraction form
    82,998,011.70/124,497,017.55 = 39,856,812.30/x
  3. Step 3: Cross multiply
    82,998,011.70x = 124,497,017.55 × 39,856,812.30
  4. Step 4: Simplify right side
    82,998,011.70x = 4,962,054,260,400,155
  5. Step 5: Solve for x
    x = 4,962,054,260,400,155/82,998,011.70
  6. Step 6: Final answer
    x = 59,785,218.45

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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.