Home / 98,931,820.40-148,397,730.60-68,320,818.80

Finding the Fourth Proportional to 98,931,820.40, 148,397,730.60 and 68,320,818.80

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Solution

The fourth proportional to 98,931,820.40, 148,397,730.60 and 68,320,818.80 is: 102,481,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,931,820.40 : 148,397,730.60 = 68,320,818.80 : x
  2. Step 2: Convert to fraction form
    98,931,820.40/148,397,730.60 = 68,320,818.80/x
  3. Step 3: Cross multiply
    98,931,820.40x = 148,397,730.60 × 68,320,818.80
  4. Step 4: Simplify right side
    98,931,820.40x = 10,138,654,462,653,814
  5. Step 5: Solve for x
    x = 10,138,654,462,653,814/98,931,820.40
  6. Step 6: Final answer
    x = 102,481,228.20

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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.