Home / 20,213,340.30-30,320,010.45-7,431,200.10

Finding the Fourth Proportional to 20,213,340.30, 30,320,010.45 and 7,431,200.10

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Solution

The fourth proportional to 20,213,340.30, 30,320,010.45 and 7,431,200.10 is: 11,146,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,340.30 : 30,320,010.45 = 7,431,200.10 : x
  2. Step 2: Convert to fraction form
    20,213,340.30/30,320,010.45 = 7,431,200.10/x
  3. Step 3: Cross multiply
    20,213,340.30x = 30,320,010.45 × 7,431,200.10
  4. Step 4: Simplify right side
    20,213,340.30x = 225,314,064,688,041.03
  5. Step 5: Solve for x
    x = 225,314,064,688,041.03/20,213,340.30
  6. Step 6: Final answer
    x = 11,146,800.15

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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.