Home / 729,473,719.60-1,006,661,715.16-394,943,567.52

Finding the Fourth Proportional to 729,473,719.60, 1,006,661,715.16 and 394,943,567.52

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Solution

The fourth proportional to 729,473,719.60, 1,006,661,715.16 and 394,943,567.52 is: 545,015,616.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,473,719.60 : 1,006,661,715.16 = 394,943,567.52 : x
  2. Step 2: Convert to fraction form
    729,473,719.60/1,006,661,715.16 = 394,943,567.52/x
  3. Step 3: Cross multiply
    729,473,719.60x = 1,006,661,715.16 × 394,943,567.52
  4. Step 4: Simplify right side
    729,473,719.60x = 397,574,569,071,092,416
  5. Step 5: Solve for x
    x = 397,574,569,071,092,416/729,473,719.60
  6. Step 6: Final answer
    x = 545,015,616.59

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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.