Home / 100,874,659.03-139,202,728.38-56,218,254.89

Finding the Fourth Proportional to 100,874,659.03, 139,202,728.38 and 56,218,254.89

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Solution

The fourth proportional to 100,874,659.03, 139,202,728.38 and 56,218,254.89 is: 77,578,794.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,874,659.03 : 139,202,728.38 = 56,218,254.89 : x
  2. Step 2: Convert to fraction form
    100,874,659.03/139,202,728.38 = 56,218,254.89/x
  3. Step 3: Cross multiply
    100,874,659.03x = 139,202,728.38 × 56,218,254.89
  4. Step 4: Simplify right side
    100,874,659.03x = 7,825,734,465,450,277
  5. Step 5: Solve for x
    x = 7,825,734,465,450,277/100,874,659.03
  6. Step 6: Final answer
    x = 77,578,794.72

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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.