Home / 71,819,321.36-99,111,292.96-40,881,479.92

Finding the Fourth Proportional to 71,819,321.36, 99,111,292.96 and 40,881,479.92

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Solution

The fourth proportional to 71,819,321.36, 99,111,292.96 and 40,881,479.92 is: 56,416,800.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,819,321.36 : 99,111,292.96 = 40,881,479.92 : x
  2. Step 2: Convert to fraction form
    71,819,321.36/99,111,292.96 = 40,881,479.92/x
  3. Step 3: Cross multiply
    71,819,321.36x = 99,111,292.96 × 40,881,479.92
  4. Step 4: Simplify right side
    71,819,321.36x = 4,051,816,332,989,477.50
  5. Step 5: Solve for x
    x = 4,051,816,332,989,477.50/71,819,321.36
  6. Step 6: Final answer
    x = 56,416,800.61

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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.