Home / 281,182,117.79-388,001,782.10-155,731,027.29

Finding the Fourth Proportional to 281,182,117.79, 388,001,782.10 and 155,731,027.29

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Solution

The fourth proportional to 281,182,117.79, 388,001,782.10 and 155,731,027.29 is: 214,892,456.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,182,117.79 : 388,001,782.10 = 155,731,027.29 : x
  2. Step 2: Convert to fraction form
    281,182,117.79/388,001,782.10 = 155,731,027.29/x
  3. Step 3: Cross multiply
    281,182,117.79x = 388,001,782.10 × 155,731,027.29
  4. Step 4: Simplify right side
    281,182,117.79x = 60,423,916,116,005,080
  5. Step 5: Solve for x
    x = 60,423,916,116,005,080/281,182,117.79
  6. Step 6: Final answer
    x = 214,892,456.86

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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.