Home / 72,409,873.74-99,924,448.48-39,370,954.84

Finding the Fourth Proportional to 72,409,873.74, 99,924,448.48 and 39,370,954.84

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Solution

The fourth proportional to 72,409,873.74, 99,924,448.48 and 39,370,954.84 is: 54,331,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,409,873.74 : 99,924,448.48 = 39,370,954.84 : x
  2. Step 2: Convert to fraction form
    72,409,873.74/99,924,448.48 = 39,370,954.84/x
  3. Step 3: Cross multiply
    72,409,873.74x = 99,924,448.48 × 39,370,954.84
  4. Step 4: Simplify right side
    72,409,873.74x = 3,934,120,948,391,209.50
  5. Step 5: Solve for x
    x = 3,934,120,948,391,209.50/72,409,873.74
  6. Step 6: Final answer
    x = 54,331,277.56

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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.