Home / 187,206,381-280,579,581.72-105,152,776.74

Finding the Fourth Proportional to 187,206,381, 280,579,581.72 and 105,152,776.74

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Solution

The fourth proportional to 187,206,381, 280,579,581.72 and 105,152,776.74 is: 157,599,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,206,381 : 280,579,581.72 = 105,152,776.74 : x
  2. Step 2: Convert to fraction form
    187,206,381/280,579,581.72 = 105,152,776.74/x
  3. Step 3: Cross multiply
    187,206,381x = 280,579,581.72 × 105,152,776.74
  4. Step 4: Simplify right side
    187,206,381x = 29,503,722,114,405,748
  5. Step 5: Solve for x
    x = 29,503,722,114,405,748/187,206,381
  6. Step 6: Final answer
    x = 157,599,981.14

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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.