Home / 72,084,981,818.70-99,477,489,187.53-39,972,606,251.22

Finding the Fourth Proportional to 72,084,981,818.70, 99,477,489,187.53 and 39,972,606,251.22

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Solution

The fourth proportional to 72,084,981,818.70, 99,477,489,187.53 and 39,972,606,251.22 is: 55,162,315,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,084,981,818.70 : 99,477,489,187.53 = 39,972,606,251.22 : x
  2. Step 2: Convert to fraction form
    72,084,981,818.70/99,477,489,187.53 = 39,972,606,251.22/x
  3. Step 3: Cross multiply
    72,084,981,818.70x = 99,477,489,187.53 × 39,972,606,251.22
  4. Step 4: Simplify right side
    72,084,981,818.70x = 3,976,374,506,153,131,900,928
  5. Step 5: Solve for x
    x = 3,976,374,506,153,131,900,928/72,084,981,818.70
  6. Step 6: Final answer
    x = 55,162,315,448.09

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1.5x scale

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.