Home / 28,107,740.40-42,161,610.60-13,740,025.20

Finding the Fourth Proportional to 28,107,740.40, 42,161,610.60 and 13,740,025.20

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Solution

The fourth proportional to 28,107,740.40, 42,161,610.60 and 13,740,025.20 is: 20,610,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107,740.40 : 42,161,610.60 = 13,740,025.20 : x
  2. Step 2: Convert to fraction form
    28,107,740.40/42,161,610.60 = 13,740,025.20/x
  3. Step 3: Cross multiply
    28,107,740.40x = 42,161,610.60 × 13,740,025.20
  4. Step 4: Simplify right side
    28,107,740.40x = 579,301,592,116,587.12
  5. Step 5: Solve for x
    x = 579,301,592,116,587.12/28,107,740.40
  6. Step 6: Final answer
    x = 20,610,037.80

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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.