Home / 281,182,108.72-388,001,769.72-155,731,018.33

Finding the Fourth Proportional to 281,182,108.72, 388,001,769.72 and 155,731,018.33

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Solution

The fourth proportional to 281,182,108.72, 388,001,769.72 and 155,731,018.33 is: 214,892,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,182,108.72 : 388,001,769.72 = 155,731,018.33 : x
  2. Step 2: Convert to fraction form
    281,182,108.72/388,001,769.72 = 155,731,018.33/x
  3. Step 3: Cross multiply
    281,182,108.72x = 388,001,769.72 × 155,731,018.33
  4. Step 4: Simplify right side
    281,182,108.72x = 60,423,910,712,337,768
  5. Step 5: Solve for x
    x = 60,423,910,712,337,768/281,182,108.72
  6. Step 6: Final answer
    x = 214,892,444.57

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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.