Home / 79,620,717,862.11-109,876,586,447.61-42,998,829,689.91

Finding the Fourth Proportional to 79,620,717,862.11, 109,876,586,447.61 and 42,998,829,689.91

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Solution

The fourth proportional to 79,620,717,862.11, 109,876,586,447.61 and 42,998,829,689.91 is: 59,338,382,702.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,620,717,862.11 : 109,876,586,447.61 = 42,998,829,689.91 : x
  2. Step 2: Convert to fraction form
    79,620,717,862.11/109,876,586,447.61 = 42,998,829,689.91/x
  3. Step 3: Cross multiply
    79,620,717,862.11x = 109,876,586,447.61 × 42,998,829,689.91
  4. Step 4: Simplify right side
    79,620,717,862.11x = 4,724,564,627,569,455,923,200
  5. Step 5: Solve for x
    x = 4,724,564,627,569,455,923,200/79,620,717,862.11
  6. Step 6: Final answer
    x = 59,338,382,702.75

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1.5x scale

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.