Home / 71,819,306.40-99,111,272.26-40,881,464.94

Finding the Fourth Proportional to 71,819,306.40, 99,111,272.26 and 40,881,464.94

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Solution

The fourth proportional to 71,819,306.40, 99,111,272.26 and 40,881,464.94 is: 56,416,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,819,306.40 : 99,111,272.26 = 40,881,464.94 : x
  2. Step 2: Convert to fraction form
    71,819,306.40/99,111,272.26 = 40,881,464.94/x
  3. Step 3: Cross multiply
    71,819,306.40x = 99,111,272.26 × 40,881,464.94
  4. Step 4: Simplify right side
    71,819,306.40x = 4,051,814,002,055,984.50
  5. Step 5: Solve for x
    x = 4,051,814,002,055,984.50/71,819,306.40
  6. Step 6: Final answer
    x = 56,416,779.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.