Home / 142,187,057.42-213,269,949.20-51,310,643.18

Finding the Fourth Proportional to 142,187,057.42, 213,269,949.20 and 51,310,643.18

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Solution

The fourth proportional to 142,187,057.42, 213,269,949.20 and 51,310,643.18 is: 76,962,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,187,057.42 : 213,269,949.20 = 51,310,643.18 : x
  2. Step 2: Convert to fraction form
    142,187,057.42/213,269,949.20 = 51,310,643.18/x
  3. Step 3: Cross multiply
    142,187,057.42x = 213,269,949.20 × 51,310,643.18
  4. Step 4: Simplify right side
    142,187,057.42x = 10,943,018,264,417,926
  5. Step 5: Solve for x
    x = 10,943,018,264,417,926/142,187,057.42
  6. Step 6: Final answer
    x = 76,962,126.25

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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.