Home / 138,840,449.99-191,595,672.74-76,114,403.15

Finding the Fourth Proportional to 138,840,449.99, 191,595,672.74 and 76,114,403.15

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Solution

The fourth proportional to 138,840,449.99, 191,595,672.74 and 76,114,403.15 is: 105,035,602.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,840,449.99 : 191,595,672.74 = 76,114,403.15 : x
  2. Step 2: Convert to fraction form
    138,840,449.99/191,595,672.74 = 76,114,403.15/x
  3. Step 3: Cross multiply
    138,840,449.99x = 191,595,672.74 × 76,114,403.15
  4. Step 4: Simplify right side
    138,840,449.99x = 14,583,190,275,960,132
  5. Step 5: Solve for x
    x = 14,583,190,275,960,132/138,840,449.99
  6. Step 6: Final answer
    x = 105,035,602.21

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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.