Home / 105,887,018.86-146,101,417.14-61,814,016.52

Finding the Fourth Proportional to 105,887,018.86, 146,101,417.14 and 61,814,016.52

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Solution

The fourth proportional to 105,887,018.86, 146,101,417.14 and 61,814,016.52 is: 85,290,109.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,887,018.86 : 146,101,417.14 = 61,814,016.52 : x
  2. Step 2: Convert to fraction form
    105,887,018.86/146,101,417.14 = 61,814,016.52/x
  3. Step 3: Cross multiply
    105,887,018.86x = 146,101,417.14 × 61,814,016.52
  4. Step 4: Simplify right side
    105,887,018.86x = 9,031,115,412,687,370
  5. Step 5: Solve for x
    x = 9,031,115,412,687,370/105,887,018.86
  6. Step 6: Final answer
    x = 85,290,109.31

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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.