Home / 187,454,738.81-258,667,846.02-103,820,678.55

Finding the Fourth Proportional to 187,454,738.81, 258,667,846.02 and 103,820,678.55

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Solution

The fourth proportional to 187,454,738.81, 258,667,846.02 and 103,820,678.55 is: 143,261,629.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,454,738.81 : 258,667,846.02 = 103,820,678.55 : x
  2. Step 2: Convert to fraction form
    187,454,738.81/258,667,846.02 = 103,820,678.55/x
  3. Step 3: Cross multiply
    187,454,738.81x = 258,667,846.02 × 103,820,678.55
  4. Step 4: Simplify right side
    187,454,738.81x = 26,855,071,292,863,316
  5. Step 5: Solve for x
    x = 26,855,071,292,863,316/187,454,738.81
  6. Step 6: Final answer
    x = 143,261,629.25

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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.