Home / 86,778,902.68-119,758,338.41-47,622,080.72

Finding the Fourth Proportional to 86,778,902.68, 119,758,338.41 and 47,622,080.72

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Solution

The fourth proportional to 86,778,902.68, 119,758,338.41 and 47,622,080.72 is: 65,720,366.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,778,902.68 : 119,758,338.41 = 47,622,080.72 : x
  2. Step 2: Convert to fraction form
    86,778,902.68/119,758,338.41 = 47,622,080.72/x
  3. Step 3: Cross multiply
    86,778,902.68x = 119,758,338.41 × 47,622,080.72
  4. Step 4: Simplify right side
    86,778,902.68x = 5,703,141,258,715,382
  5. Step 5: Solve for x
    x = 5,703,141,258,715,382/86,778,902.68
  6. Step 6: Final answer
    x = 65,720,366.16

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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.