Home / 144,642,777.66-199,609,663.10-81,931,896.45

Finding the Fourth Proportional to 144,642,777.66, 199,609,663.10 and 81,931,896.45

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Solution

The fourth proportional to 144,642,777.66, 199,609,663.10 and 81,931,896.45 is: 113,067,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,642,777.66 : 199,609,663.10 = 81,931,896.45 : x
  2. Step 2: Convert to fraction form
    144,642,777.66/199,609,663.10 = 81,931,896.45/x
  3. Step 3: Cross multiply
    144,642,777.66x = 199,609,663.10 × 81,931,896.45
  4. Step 4: Simplify right side
    144,642,777.66x = 16,354,398,247,118,928
  5. Step 5: Solve for x
    x = 16,354,398,247,118,928/144,642,777.66
  6. Step 6: Final answer
    x = 113,067,506.80

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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.