Home / 187,812,013.80-281,718,020.70-153,771,796.20

Finding the Fourth Proportional to 187,812,013.80, 281,718,020.70 and 153,771,796.20

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Solution

The fourth proportional to 187,812,013.80, 281,718,020.70 and 153,771,796.20 is: 230,657,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,812,013.80 : 281,718,020.70 = 153,771,796.20 : x
  2. Step 2: Convert to fraction form
    187,812,013.80/281,718,020.70 = 153,771,796.20/x
  3. Step 3: Cross multiply
    187,812,013.80x = 281,718,020.70 × 153,771,796.20
  4. Step 4: Simplify right side
    187,812,013.80x = 43,320,286,064,947,776
  5. Step 5: Solve for x
    x = 43,320,286,064,947,776/187,812,013.80
  6. Step 6: Final answer
    x = 230,657,694.30

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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.