Home / 709,766,502.19-979,530,792.47-408,444,179.11

Finding the Fourth Proportional to 709,766,502.19, 979,530,792.47 and 408,444,179.11

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Solution

The fourth proportional to 709,766,502.19, 979,530,792.47 and 408,444,179.11 is: 563,683,477.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,766,502.19 : 979,530,792.47 = 408,444,179.11 : x
  2. Step 2: Convert to fraction form
    709,766,502.19/979,530,792.47 = 408,444,179.11/x
  3. Step 3: Cross multiply
    709,766,502.19x = 979,530,792.47 × 408,444,179.11
  4. Step 4: Simplify right side
    709,766,502.19x = 400,083,650,441,334,720
  5. Step 5: Solve for x
    x = 400,083,650,441,334,720/709,766,502.19
  6. Step 6: Final answer
    x = 563,683,477.89

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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.