Home / 813,447,216.20-1,122,557,881.70-442,169,247.58

Finding the Fourth Proportional to 813,447,216.20, 1,122,557,881.70 and 442,169,247.58

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Solution

The fourth proportional to 813,447,216.20, 1,122,557,881.70 and 442,169,247.58 is: 610,193,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,447,216.20 : 1,122,557,881.70 = 442,169,247.58 : x
  2. Step 2: Convert to fraction form
    813,447,216.20/1,122,557,881.70 = 442,169,247.58/x
  3. Step 3: Cross multiply
    813,447,216.20x = 1,122,557,881.70 × 442,169,247.58
  4. Step 4: Simplify right side
    813,447,216.20x = 496,360,573,916,287,680
  5. Step 5: Solve for x
    x = 496,360,573,916,287,680/813,447,216.20
  6. Step 6: Final answer
    x = 610,193,954.85

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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.