Home / 824,565,009.79-1,137,891,696.38-613,814,306.45

Finding the Fourth Proportional to 824,565,009.79, 1,137,891,696.38 and 613,814,306.45

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Solution

The fourth proportional to 824,565,009.79, 1,137,891,696.38 and 613,814,306.45 is: 847,057,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,565,009.79 : 1,137,891,696.38 = 613,814,306.45 : x
  2. Step 2: Convert to fraction form
    824,565,009.79/1,137,891,696.38 = 613,814,306.45/x
  3. Step 3: Cross multiply
    824,565,009.79x = 1,137,891,696.38 × 613,814,306.45
  4. Step 4: Simplify right side
    824,565,009.79x = 698,454,202,432,144,000
  5. Step 5: Solve for x
    x = 698,454,202,432,144,000/824,565,009.79
  6. Step 6: Final answer
    x = 847,057,774.88

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1.5x scale

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.