Home / 154,820,356.02-213,647,794.29-87,851,512.98

Finding the Fourth Proportional to 154,820,356.02, 213,647,794.29 and 87,851,512.98

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Solution

The fourth proportional to 154,820,356.02, 213,647,794.29 and 87,851,512.98 is: 121,232,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,820,356.02 : 213,647,794.29 = 87,851,512.98 : x
  2. Step 2: Convert to fraction form
    154,820,356.02/213,647,794.29 = 87,851,512.98/x
  3. Step 3: Cross multiply
    154,820,356.02x = 213,647,794.29 × 87,851,512.98
  4. Step 4: Simplify right side
    154,820,356.02x = 18,769,281,973,216,304
  5. Step 5: Solve for x
    x = 18,769,281,973,216,304/154,820,356.02
  6. Step 6: Final answer
    x = 121,232,649.61

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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.