Home / 78,605,731.05-108,476,339.06-45,585,557.81

Finding the Fourth Proportional to 78,605,731.05, 108,476,339.06 and 45,585,557.81

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Solution

The fourth proportional to 78,605,731.05, 108,476,339.06 and 45,585,557.81 is: 62,908,319.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,605,731.05 : 108,476,339.06 = 45,585,557.81 : x
  2. Step 2: Convert to fraction form
    78,605,731.05/108,476,339.06 = 45,585,557.81/x
  3. Step 3: Cross multiply
    78,605,731.05x = 108,476,339.06 × 45,585,557.81
  4. Step 4: Simplify right side
    78,605,731.05x = 4,944,954,425,825,339
  5. Step 5: Solve for x
    x = 4,944,954,425,825,339/78,605,731.05
  6. Step 6: Final answer
    x = 62,908,319.28

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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.