Home / 257,267,641.70-355,028,572.59-139,793,330.36

Finding the Fourth Proportional to 257,267,641.70, 355,028,572.59 and 139,793,330.36

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Solution

The fourth proportional to 257,267,641.70, 355,028,572.59 and 139,793,330.36 is: 192,914,375.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,267,641.70 : 355,028,572.59 = 139,793,330.36 : x
  2. Step 2: Convert to fraction form
    257,267,641.70/355,028,572.59 = 139,793,330.36/x
  3. Step 3: Cross multiply
    257,267,641.70x = 355,028,572.59 × 139,793,330.36
  4. Step 4: Simplify right side
    257,267,641.70x = 49,630,626,535,313,112
  5. Step 5: Solve for x
    x = 49,630,626,535,313,112/257,267,641.70
  6. Step 6: Final answer
    x = 192,914,375.89

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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.