Home / 90,643,338.36-136,005,198.12-47,502,284.76

Finding the Fourth Proportional to 90,643,338.36, 136,005,198.12 and 47,502,284.76

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Solution

The fourth proportional to 90,643,338.36, 136,005,198.12 and 47,502,284.76 is: 71,274,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,643,338.36 : 136,005,198.12 = 47,502,284.76 : x
  2. Step 2: Convert to fraction form
    90,643,338.36/136,005,198.12 = 47,502,284.76/x
  3. Step 3: Cross multiply
    90,643,338.36x = 136,005,198.12 × 47,502,284.76
  4. Step 4: Simplify right side
    90,643,338.36x = 6,460,557,649,936,457
  5. Step 5: Solve for x
    x = 6,460,557,649,936,457/90,643,338.36
  6. Step 6: Final answer
    x = 71,274,489.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.