Home / 77,240,257.86-115,851,207.78-25,412,007.60

Finding the Fourth Proportional to 77,240,257.86, 115,851,207.78 and 25,412,007.60

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Solution

The fourth proportional to 77,240,257.86, 115,851,207.78 and 25,412,007.60 is: 38,114,991.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,240,257.86 : 115,851,207.78 = 25,412,007.60 : x
  2. Step 2: Convert to fraction form
    77,240,257.86/115,851,207.78 = 25,412,007.60/x
  3. Step 3: Cross multiply
    77,240,257.86x = 115,851,207.78 × 25,412,007.60
  4. Step 4: Simplify right side
    77,240,257.86x = 2,944,011,772,574,539.50
  5. Step 5: Solve for x
    x = 2,944,011,772,574,539.50/77,240,257.86
  6. Step 6: Final answer
    x = 38,114,991.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.