Home / 187,284,815.40-280,738,266.30-85,122,172.20

Finding the Fourth Proportional to 187,284,815.40, 280,738,266.30 and 85,122,172.20

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Solution

The fourth proportional to 187,284,815.40, 280,738,266.30 and 85,122,172.20 is: 127,597,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,284,815.40 : 280,738,266.30 = 85,122,172.20 : x
  2. Step 2: Convert to fraction form
    187,284,815.40/280,738,266.30 = 85,122,172.20/x
  3. Step 3: Cross multiply
    187,284,815.40x = 280,738,266.30 × 85,122,172.20
  4. Step 4: Simplify right side
    187,284,815.40x = 23,897,051,047,118,060
  5. Step 5: Solve for x
    x = 23,897,051,047,118,060/187,284,815.40
  6. Step 6: Final answer
    x = 127,597,376.20

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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.