Home / 813,693,016.11-1,122,888,470.34-442,415,047.49

Finding the Fourth Proportional to 813,693,016.11, 1,122,888,470.34 and 442,415,047.49

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Solution

The fourth proportional to 813,693,016.11, 1,122,888,470.34 and 442,415,047.49 is: 610,528,474.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,693,016.11 : 1,122,888,470.34 = 442,415,047.49 : x
  2. Step 2: Convert to fraction form
    813,693,016.11/1,122,888,470.34 = 442,415,047.49/x
  3. Step 3: Cross multiply
    813,693,016.11x = 1,122,888,470.34 × 442,415,047.49
  4. Step 4: Simplify right side
    813,693,016.11x = 496,782,755,925,830,080
  5. Step 5: Solve for x
    x = 496,782,755,925,830,080/813,693,016.11
  6. Step 6: Final answer
    x = 610,528,474.61

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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.