Home / 215,708,822.40-323,563,233.60-155,242,646.40

Finding the Fourth Proportional to 215,708,822.40, 323,563,233.60 and 155,242,646.40

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Solution

The fourth proportional to 215,708,822.40, 323,563,233.60 and 155,242,646.40 is: 232,863,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,708,822.40 : 323,563,233.60 = 155,242,646.40 : x
  2. Step 2: Convert to fraction form
    215,708,822.40/323,563,233.60 = 155,242,646.40/x
  3. Step 3: Cross multiply
    215,708,822.40x = 323,563,233.60 × 155,242,646.40
  4. Step 4: Simplify right side
    215,708,822.40x = 50,230,812,661,805,408
  5. Step 5: Solve for x
    x = 50,230,812,661,805,408/215,708,822.40
  6. Step 6: Final answer
    x = 232,863,969.60

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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.