Home / 42,755,889.78-64,144,463.79-12,464,019.06

Finding the Fourth Proportional to 42,755,889.78, 64,144,463.79 and 12,464,019.06

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Solution

The fourth proportional to 42,755,889.78, 64,144,463.79 and 12,464,019.06 is: 18,699,127.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,755,889.78 : 64,144,463.79 = 12,464,019.06 : x
  2. Step 2: Convert to fraction form
    42,755,889.78/64,144,463.79 = 12,464,019.06/x
  3. Step 3: Cross multiply
    42,755,889.78x = 64,144,463.79 × 12,464,019.06
  4. Step 4: Simplify right side
    42,755,889.78x = 799,497,819,272,039.88
  5. Step 5: Solve for x
    x = 799,497,819,272,039.88/42,755,889.78
  6. Step 6: Final answer
    x = 18,699,127.15

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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.