Home / 1,350,855,873.43-1,864,200,143.71-778,322,503.70

Finding the Fourth Proportional to 1,350,855,873.43, 1,864,200,143.71 and 778,322,503.70

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Solution

The fourth proportional to 1,350,855,873.43, 1,864,200,143.71 and 778,322,503.70 is: 1,074,096,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350,855,873.43 : 1,864,200,143.71 = 778,322,503.70 : x
  2. Step 2: Convert to fraction form
    1,350,855,873.43/1,864,200,143.71 = 778,322,503.70/x
  3. Step 3: Cross multiply
    1,350,855,873.43x = 1,864,200,143.71 × 778,322,503.70
  4. Step 4: Simplify right side
    1,350,855,873.43x = 1,450,948,923,251,127,808
  5. Step 5: Solve for x
    x = 1,450,948,923,251,127,808/1,350,855,873.43
  6. Step 6: Final answer
    x = 1,074,096,024.45

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Double scale
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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.