Home / 98,654,121.30-147,768,605.55-81,648,009.30

Finding the Fourth Proportional to 98,654,121.30, 147,768,605.55 and 81,648,009.30

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Solution

The fourth proportional to 98,654,121.30, 147,768,605.55 and 81,648,009.30 is: 122,296,081.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,654,121.30 : 147,768,605.55 = 81,648,009.30 : x
  2. Step 2: Convert to fraction form
    98,654,121.30/147,768,605.55 = 81,648,009.30/x
  3. Step 3: Cross multiply
    98,654,121.30x = 147,768,605.55 × 81,648,009.30
  4. Step 4: Simplify right side
    98,654,121.30x = 12,065,012,480,194,432
  5. Step 5: Solve for x
    x = 12,065,012,480,194,432/98,654,121.30
  6. Step 6: Final answer
    x = 122,296,081.72

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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.