Home / 30,943,394.87-42,703,037.34-18,555,505.16

Finding the Fourth Proportional to 30,943,394.87, 42,703,037.34 and 18,555,505.16

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Solution

The fourth proportional to 30,943,394.87, 42,703,037.34 and 18,555,505.16 is: 25,607,288.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943,394.87 : 42,703,037.34 = 18,555,505.16 : x
  2. Step 2: Convert to fraction form
    30,943,394.87/42,703,037.34 = 18,555,505.16/x
  3. Step 3: Cross multiply
    30,943,394.87x = 42,703,037.34 × 18,555,505.16
  4. Step 4: Simplify right side
    30,943,394.87x = 792,376,429,710,042.75
  5. Step 5: Solve for x
    x = 792,376,429,710,042.75/30,943,394.87
  6. Step 6: Final answer
    x = 25,607,288.18

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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.