Home / 98,280,021.40-147,420,032.10-79,148,145.40

Finding the Fourth Proportional to 98,280,021.40, 147,420,032.10 and 79,148,145.40

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Solution

The fourth proportional to 98,280,021.40, 147,420,032.10 and 79,148,145.40 is: 118,722,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,280,021.40 : 147,420,032.10 = 79,148,145.40 : x
  2. Step 2: Convert to fraction form
    98,280,021.40/147,420,032.10 = 79,148,145.40/x
  3. Step 3: Cross multiply
    98,280,021.40x = 147,420,032.10 × 79,148,145.40
  4. Step 4: Simplify right side
    98,280,021.40x = 11,668,022,135,523,468
  5. Step 5: Solve for x
    x = 11,668,022,135,523,468/98,280,021.40
  6. Step 6: Final answer
    x = 118,722,218.10

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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.