Home / 813,692,211.36-1,122,882,022.80-442,423,592.16

Finding the Fourth Proportional to 813,692,211.36, 1,122,882,022.80 and 442,423,592.16

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Solution

The fourth proportional to 813,692,211.36, 1,122,882,022.80 and 442,423,592.16 is: 610,537,364.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,692,211.36 : 1,122,882,022.80 = 442,423,592.16 : x
  2. Step 2: Convert to fraction form
    813,692,211.36/1,122,882,022.80 = 442,423,592.16/x
  3. Step 3: Cross multiply
    813,692,211.36x = 1,122,882,022.80 × 442,423,592.16
  4. Step 4: Simplify right side
    813,692,211.36x = 496,789,498,099,063,040
  5. Step 5: Solve for x
    x = 496,789,498,099,063,040/813,692,211.36
  6. Step 6: Final answer
    x = 610,537,364.33

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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.