Home / 247,612,005.40-370,536,209.70-215,615,320.60

Finding the Fourth Proportional to 247,612,005.40, 370,536,209.70 and 215,615,320.60

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Solution

The fourth proportional to 247,612,005.40, 370,536,209.70 and 215,615,320.60 is: 322,655,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,612,005.40 : 370,536,209.70 = 215,615,320.60 : x
  2. Step 2: Convert to fraction form
    247,612,005.40/370,536,209.70 = 215,615,320.60/x
  3. Step 3: Cross multiply
    247,612,005.40x = 370,536,209.70 × 215,615,320.60
  4. Step 4: Simplify right side
    247,612,005.40x = 79,893,283,648,374,320
  5. Step 5: Solve for x
    x = 79,893,283,648,374,320/247,612,005.40
  6. Step 6: Final answer
    x = 322,655,129.42

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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.