Home / 140,454,004.20-210,681,006.30-72,429,556.20

Finding the Fourth Proportional to 140,454,004.20, 210,681,006.30 and 72,429,556.20

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Solution

The fourth proportional to 140,454,004.20, 210,681,006.30 and 72,429,556.20 is: 108,644,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,454,004.20 : 210,681,006.30 = 72,429,556.20 : x
  2. Step 2: Convert to fraction form
    140,454,004.20/210,681,006.30 = 72,429,556.20/x
  3. Step 3: Cross multiply
    140,454,004.20x = 210,681,006.30 × 72,429,556.20
  4. Step 4: Simplify right side
    140,454,004.20x = 15,259,531,786,078,406
  5. Step 5: Solve for x
    x = 15,259,531,786,078,406/140,454,004.20
  6. Step 6: Final answer
    x = 108,644,334.30

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1.5x scale

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.