Home / 30,790,154.25-42,490,525.50-16,661,340.90

Finding the Fourth Proportional to 30,790,154.25, 42,490,525.50 and 16,661,340.90

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Solution

The fourth proportional to 30,790,154.25, 42,490,525.50 and 16,661,340.90 is: 22,992,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790,154.25 : 42,490,525.50 = 16,661,340.90 : x
  2. Step 2: Convert to fraction form
    30,790,154.25/42,490,525.50 = 16,661,340.90/x
  3. Step 3: Cross multiply
    30,790,154.25x = 42,490,525.50 × 16,661,340.90
  4. Step 4: Simplify right side
    30,790,154.25x = 707,949,130,375,643
  5. Step 5: Solve for x
    x = 707,949,130,375,643/30,790,154.25
  6. Step 6: Final answer
    x = 22,992,711.39

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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.