Home / 54,988,134.12-75,875,189.63-31,778,778.87

Finding the Fourth Proportional to 54,988,134.12, 75,875,189.63 and 31,778,778.87

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Solution

The fourth proportional to 54,988,134.12, 75,875,189.63 and 31,778,778.87 is: 43,849,839.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,988,134.12 : 75,875,189.63 = 31,778,778.87 : x
  2. Step 2: Convert to fraction form
    54,988,134.12/75,875,189.63 = 31,778,778.87/x
  3. Step 3: Cross multiply
    54,988,134.12x = 75,875,189.63 × 31,778,778.87
  4. Step 4: Simplify right side
    54,988,134.12x = 2,411,220,872,812,193.50
  5. Step 5: Solve for x
    x = 2,411,220,872,812,193.50/54,988,134.12
  6. Step 6: Final answer
    x = 43,849,839.81

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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.