Home / 288,586,436.76-398,238,609.42-156,424,595.70

Finding the Fourth Proportional to 288,586,436.76, 398,238,609.42 and 156,424,595.70

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Solution

The fourth proportional to 288,586,436.76, 398,238,609.42 and 156,424,595.70 is: 215,860,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,586,436.76 : 398,238,609.42 = 156,424,595.70 : x
  2. Step 2: Convert to fraction form
    288,586,436.76/398,238,609.42 = 156,424,595.70/x
  3. Step 3: Cross multiply
    288,586,436.76x = 398,238,609.42 × 156,424,595.70
  4. Step 4: Simplify right side
    288,586,436.76x = 62,294,313,470,653,712
  5. Step 5: Solve for x
    x = 62,294,313,470,653,712/288,586,436.76
  6. Step 6: Final answer
    x = 215,860,156.74

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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.