Home / 28,310,581.80-42,497,802.90-18,744,643.80

Finding the Fourth Proportional to 28,310,581.80, 42,497,802.90 and 18,744,643.80

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Solution

The fourth proportional to 28,310,581.80, 42,497,802.90 and 18,744,643.80 is: 28,138,106.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310,581.80 : 42,497,802.90 = 18,744,643.80 : x
  2. Step 2: Convert to fraction form
    28,310,581.80/42,497,802.90 = 18,744,643.80/x
  3. Step 3: Cross multiply
    28,310,581.80x = 42,497,802.90 × 18,744,643.80
  4. Step 4: Simplify right side
    28,310,581.80x = 796,606,177,643,107
  5. Step 5: Solve for x
    x = 796,606,177,643,107/28,310,581.80
  6. Step 6: Final answer
    x = 28,138,106.92

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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.