Home / 138,773,277.30-191,507,347.43-76,039,407.49

Finding the Fourth Proportional to 138,773,277.30, 191,507,347.43 and 76,039,407.49

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Solution

The fourth proportional to 138,773,277.30, 191,507,347.43 and 76,039,407.49 is: 104,934,505.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,773,277.30 : 191,507,347.43 = 76,039,407.49 : x
  2. Step 2: Convert to fraction form
    138,773,277.30/191,507,347.43 = 76,039,407.49/x
  3. Step 3: Cross multiply
    138,773,277.30x = 191,507,347.43 × 76,039,407.49
  4. Step 4: Simplify right side
    138,773,277.30x = 14,562,105,228,178,578
  5. Step 5: Solve for x
    x = 14,562,105,228,178,578/138,773,277.30
  6. Step 6: Final answer
    x = 104,934,505.49

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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.