Home / 1,785,746,616.74-2,678,724,178.89-542,217,648.73

Finding the Fourth Proportional to 1,785,746,616.74, 2,678,724,178.89 and 542,217,648.73

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Solution

The fourth proportional to 1,785,746,616.74, 2,678,724,178.89 and 542,217,648.73 is: 813,358,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785,746,616.74 : 2,678,724,178.89 = 542,217,648.73 : x
  2. Step 2: Convert to fraction form
    1,785,746,616.74/2,678,724,178.89 = 542,217,648.73/x
  3. Step 3: Cross multiply
    1,785,746,616.74x = 2,678,724,178.89 × 542,217,648.73
  4. Step 4: Simplify right side
    1,785,746,616.74x = 1,452,451,525,865,510,912
  5. Step 5: Solve for x
    x = 1,452,451,525,865,510,912/1,785,746,616.74
  6. Step 6: Final answer
    x = 813,358,128.33

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Double scale
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1.5x scale

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.