Home / 84,989,010.90-127,483,516.35-54,378,009.30

Finding the Fourth Proportional to 84,989,010.90, 127,483,516.35 and 54,378,009.30

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Solution

The fourth proportional to 84,989,010.90, 127,483,516.35 and 54,378,009.30 is: 81,567,013.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,989,010.90 : 127,483,516.35 = 54,378,009.30 : x
  2. Step 2: Convert to fraction form
    84,989,010.90/127,483,516.35 = 54,378,009.30/x
  3. Step 3: Cross multiply
    84,989,010.90x = 127,483,516.35 × 54,378,009.30
  4. Step 4: Simplify right side
    84,989,010.90x = 6,932,299,837,677,001
  5. Step 5: Solve for x
    x = 6,932,299,837,677,001/84,989,010.90
  6. Step 6: Final answer
    x = 81,567,013.95

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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.