Home / 154,146,970.98-212,722,589.91-83,582,452.97

Finding the Fourth Proportional to 154,146,970.98, 212,722,589.91 and 83,582,452.97

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Solution

The fourth proportional to 154,146,970.98, 212,722,589.91 and 83,582,452.97 is: 115,343,660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,146,970.98 : 212,722,589.91 = 83,582,452.97 : x
  2. Step 2: Convert to fraction form
    154,146,970.98/212,722,589.91 = 83,582,452.97/x
  3. Step 3: Cross multiply
    154,146,970.98x = 212,722,589.91 × 83,582,452.97
  4. Step 4: Simplify right side
    154,146,970.98x = 17,779,875,866,576,156
  5. Step 5: Solve for x
    x = 17,779,875,866,576,156/154,146,970.98
  6. Step 6: Final answer
    x = 115,343,660.37

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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.