Home / 780,936,474.16-1,170,788,363.42-387,191,818.24

Finding the Fourth Proportional to 780,936,474.16, 1,170,788,363.42 and 387,191,818.24

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Solution

The fourth proportional to 780,936,474.16, 1,170,788,363.42 and 387,191,818.24 is: 580,482,139.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,936,474.16 : 1,170,788,363.42 = 387,191,818.24 : x
  2. Step 2: Convert to fraction form
    780,936,474.16/1,170,788,363.42 = 387,191,818.24/x
  3. Step 3: Cross multiply
    780,936,474.16x = 1,170,788,363.42 × 387,191,818.24
  4. Step 4: Simplify right side
    780,936,474.16x = 453,319,675,206,823,744
  5. Step 5: Solve for x
    x = 453,319,675,206,823,744/780,936,474.16
  6. Step 6: Final answer
    x = 580,482,139.34

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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.