Home / 72,776,595,644.50-100,436,899,013.37-40,223,108,987.91

Finding the Fourth Proportional to 72,776,595,644.50, 100,436,899,013.37 and 40,223,108,987.91

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Solution

The fourth proportional to 72,776,595,644.50, 100,436,899,013.37 and 40,223,108,987.91 is: 55,510,762,761.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,776,595,644.50 : 100,436,899,013.37 = 40,223,108,987.91 : x
  2. Step 2: Convert to fraction form
    72,776,595,644.50/100,436,899,013.37 = 40,223,108,987.91/x
  3. Step 3: Cross multiply
    72,776,595,644.50x = 100,436,899,013.37 × 40,223,108,987.91
  4. Step 4: Simplify right side
    72,776,595,644.50x = 4,039,884,335,422,491,852,800
  5. Step 5: Solve for x
    x = 4,039,884,335,422,491,852,800/72,776,595,644.50
  6. Step 6: Final answer
    x = 55,510,762,761.65

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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.