Home / 66,144,005.60-99,209,589.20-20,086,271.20

Finding the Fourth Proportional to 66,144,005.60, 99,209,589.20 and 20,086,271.20

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Solution

The fourth proportional to 66,144,005.60, 99,209,589.20 and 20,086,271.20 is: 30,127,457.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,144,005.60 : 99,209,589.20 = 20,086,271.20 : x
  2. Step 2: Convert to fraction form
    66,144,005.60/99,209,589.20 = 20,086,271.20/x
  3. Step 3: Cross multiply
    66,144,005.60x = 99,209,589.20 × 20,086,271.20
  4. Step 4: Simplify right side
    66,144,005.60x = 1,992,750,714,311,791
  5. Step 5: Solve for x
    x = 1,992,750,714,311,791/66,144,005.60
  6. Step 6: Final answer
    x = 30,127,457.45

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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.