Home / 72,021,747.30-108,032,460.84-55,650,836.40

Finding the Fourth Proportional to 72,021,747.30, 108,032,460.84 and 55,650,836.40

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Solution

The fourth proportional to 72,021,747.30, 108,032,460.84 and 55,650,836.40 is: 83,476,130.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,021,747.30 : 108,032,460.84 = 55,650,836.40 : x
  2. Step 2: Convert to fraction form
    72,021,747.30/108,032,460.84 = 55,650,836.40/x
  3. Step 3: Cross multiply
    72,021,747.30x = 108,032,460.84 × 55,650,836.40
  4. Step 4: Simplify right side
    72,021,747.30x = 6,012,096,804,096,247
  5. Step 5: Solve for x
    x = 6,012,096,804,096,247/72,021,747.30
  6. Step 6: Final answer
    x = 83,476,130.88

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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.