Home / 84,415,721.07-125,913,845.56-76,666,130.31

Finding the Fourth Proportional to 84,415,721.07, 125,913,845.56 and 76,666,130.31

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Solution

The fourth proportional to 84,415,721.07, 125,913,845.56 and 76,666,130.31 is: 114,354,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,415,721.07 : 125,913,845.56 = 76,666,130.31 : x
  2. Step 2: Convert to fraction form
    84,415,721.07/125,913,845.56 = 76,666,130.31/x
  3. Step 3: Cross multiply
    84,415,721.07x = 125,913,845.56 × 76,666,130.31
  4. Step 4: Simplify right side
    84,415,721.07x = 9,653,327,291,344,510
  5. Step 5: Solve for x
    x = 9,653,327,291,344,510/84,415,721.07
  6. Step 6: Final answer
    x = 114,354,615.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.