Home / 42,680,142.65-64,020,260.16-19,976,983.13

Finding the Fourth Proportional to 42,680,142.65, 64,020,260.16 and 19,976,983.13

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Solution

The fourth proportional to 42,680,142.65, 64,020,260.16 and 19,976,983.13 is: 29,965,496.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,680,142.65 : 64,020,260.16 = 19,976,983.13 : x
  2. Step 2: Convert to fraction form
    42,680,142.65/64,020,260.16 = 19,976,983.13/x
  3. Step 3: Cross multiply
    42,680,142.65x = 64,020,260.16 × 19,976,983.13
  4. Step 4: Simplify right side
    42,680,142.65x = 1,278,931,657,354,581.75
  5. Step 5: Solve for x
    x = 1,278,931,657,354,581.75/42,680,142.65
  6. Step 6: Final answer
    x = 29,965,496.31

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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.