Home / 187,178,512.40-280,369,637.40-155,328,016.40

Finding the Fourth Proportional to 187,178,512.40, 280,369,637.40 and 155,328,016.40

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Solution

The fourth proportional to 187,178,512.40, 280,369,637.40 and 155,328,016.40 is: 232,661,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,178,512.40 : 280,369,637.40 = 155,328,016.40 : x
  2. Step 2: Convert to fraction form
    187,178,512.40/280,369,637.40 = 155,328,016.40/x
  3. Step 3: Cross multiply
    187,178,512.40x = 280,369,637.40 × 155,328,016.40
  4. Step 4: Simplify right side
    187,178,512.40x = 43,549,259,636,129,248
  5. Step 5: Solve for x
    x = 43,549,259,636,129,248/187,178,512.40
  6. Step 6: Final answer
    x = 232,661,639.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.