Home / 97,210,439.20-145,815,658.80-85,873,031.20

Finding the Fourth Proportional to 97,210,439.20, 145,815,658.80 and 85,873,031.20

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Solution

The fourth proportional to 97,210,439.20, 145,815,658.80 and 85,873,031.20 is: 128,809,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,210,439.20 : 145,815,658.80 = 85,873,031.20 : x
  2. Step 2: Convert to fraction form
    97,210,439.20/145,815,658.80 = 85,873,031.20/x
  3. Step 3: Cross multiply
    97,210,439.20x = 145,815,658.80 × 85,873,031.20
  4. Step 4: Simplify right side
    97,210,439.20x = 12,521,632,617,580,956
  5. Step 5: Solve for x
    x = 12,521,632,617,580,956/97,210,439.20
  6. Step 6: Final answer
    x = 128,809,546.80

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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.