Home / 282,103,346.70-423,155,020.05-261,696,012.30

Finding the Fourth Proportional to 282,103,346.70, 423,155,020.05 and 261,696,012.30

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Solution

The fourth proportional to 282,103,346.70, 423,155,020.05 and 261,696,012.30 is: 392,544,018.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,103,346.70 : 423,155,020.05 = 261,696,012.30 : x
  2. Step 2: Convert to fraction form
    282,103,346.70/423,155,020.05 = 261,696,012.30/x
  3. Step 3: Cross multiply
    282,103,346.70x = 423,155,020.05 × 261,696,012.30
  4. Step 4: Simplify right side
    282,103,346.70x = 110,737,981,331,811,552
  5. Step 5: Solve for x
    x = 110,737,981,331,811,552/282,103,346.70
  6. Step 6: Final answer
    x = 392,544,018.45

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Double scale
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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.