Home / 78,714,570.94-108,620,859.09-45,225,127.42

Finding the Fourth Proportional to 78,714,570.94, 108,620,859.09 and 45,225,127.42

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Solution

The fourth proportional to 78,714,570.94, 108,620,859.09 and 45,225,127.42 is: 62,407,660.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,714,570.94 : 108,620,859.09 = 45,225,127.42 : x
  2. Step 2: Convert to fraction form
    78,714,570.94/108,620,859.09 = 45,225,127.42/x
  3. Step 3: Cross multiply
    78,714,570.94x = 108,620,859.09 × 45,225,127.42
  4. Step 4: Simplify right side
    78,714,570.94x = 4,912,392,192,713,157
  5. Step 5: Solve for x
    x = 4,912,392,192,713,157/78,714,570.94
  6. Step 6: Final answer
    x = 62,407,660.16

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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.