Home / 66,676,798.20-100,022,547.78-21,228,022.20

Finding the Fourth Proportional to 66,676,798.20, 100,022,547.78 and 21,228,022.20

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Solution

The fourth proportional to 66,676,798.20, 100,022,547.78 and 21,228,022.20 is: 31,844,373.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,676,798.20 : 100,022,547.78 = 21,228,022.20 : x
  2. Step 2: Convert to fraction form
    66,676,798.20/100,022,547.78 = 21,228,022.20/x
  3. Step 3: Cross multiply
    66,676,798.20x = 100,022,547.78 × 21,228,022.20
  4. Step 4: Simplify right side
    66,676,798.20x = 2,123,280,864,774,400.75
  5. Step 5: Solve for x
    x = 2,123,280,864,774,400.75/66,676,798.20
  6. Step 6: Final answer
    x = 31,844,373.49

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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.