Home / 1,042,472,191.15-1,438,639,717.45-613,339,435.70

Finding the Fourth Proportional to 1,042,472,191.15, 1,438,639,717.45 and 613,339,435.70

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Solution

The fourth proportional to 1,042,472,191.15, 1,438,639,717.45 and 613,339,435.70 is: 846,424,950.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,472,191.15 : 1,438,639,717.45 = 613,339,435.70 : x
  2. Step 2: Convert to fraction form
    1,042,472,191.15/1,438,639,717.45 = 613,339,435.70/x
  3. Step 3: Cross multiply
    1,042,472,191.15x = 1,438,639,717.45 × 613,339,435.70
  4. Step 4: Simplify right side
    1,042,472,191.15x = 882,374,472,469,197,312
  5. Step 5: Solve for x
    x = 882,374,472,469,197,312/1,042,472,191.15
  6. Step 6: Final answer
    x = 846,424,950.19

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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.