Home / 74,704,231.09-112,047,930.10-20,120,811.71

Finding the Fourth Proportional to 74,704,231.09, 112,047,930.10 and 20,120,811.71

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Solution

The fourth proportional to 74,704,231.09, 112,047,930.10 and 20,120,811.71 is: 30,178,950.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704,231.09 : 112,047,930.10 = 20,120,811.71 : x
  2. Step 2: Convert to fraction form
    74,704,231.09/112,047,930.10 = 20,120,811.71/x
  3. Step 3: Cross multiply
    74,704,231.09x = 112,047,930.10 × 20,120,811.71
  4. Step 4: Simplify right side
    74,704,231.09x = 2,254,495,304,019,242.50
  5. Step 5: Solve for x
    x = 2,254,495,304,019,242.50/74,704,231.09
  6. Step 6: Final answer
    x = 30,178,950.66

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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.