Home / 409,200,057.89-564,696,306.47-221,028,350.91

Finding the Fourth Proportional to 409,200,057.89, 564,696,306.47 and 221,028,350.91

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Solution

The fourth proportional to 409,200,057.89, 564,696,306.47 and 221,028,350.91 is: 305,019,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,200,057.89 : 564,696,306.47 = 221,028,350.91 : x
  2. Step 2: Convert to fraction form
    409,200,057.89/564,696,306.47 = 221,028,350.91/x
  3. Step 3: Cross multiply
    409,200,057.89x = 564,696,306.47 × 221,028,350.91
  4. Step 4: Simplify right side
    409,200,057.89x = 124,813,893,384,032,064
  5. Step 5: Solve for x
    x = 124,813,893,384,032,064/409,200,057.89
  6. Step 6: Final answer
    x = 305,019,246.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.