Home / 898,727,053.78-1,240,135,922.13-496,786,506.85

Finding the Fourth Proportional to 898,727,053.78, 1,240,135,922.13 and 496,786,506.85

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Solution

The fourth proportional to 898,727,053.78, 1,240,135,922.13 and 496,786,506.85 is: 685,506,005.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,727,053.78 : 1,240,135,922.13 = 496,786,506.85 : x
  2. Step 2: Convert to fraction form
    898,727,053.78/1,240,135,922.13 = 496,786,506.85/x
  3. Step 3: Cross multiply
    898,727,053.78x = 1,240,135,922.13 × 496,786,506.85
  4. Step 4: Simplify right side
    898,727,053.78x = 616,082,792,773,878,400
  5. Step 5: Solve for x
    x = 616,082,792,773,878,400/898,727,053.78
  6. Step 6: Final answer
    x = 685,506,005.62

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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.