Home / 21,218,867.36-31,828,272.24-9,853,100.96

Finding the Fourth Proportional to 21,218,867.36, 31,828,272.24 and 9,853,100.96

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Solution

The fourth proportional to 21,218,867.36, 31,828,272.24 and 9,853,100.96 is: 14,779,638.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,218,867.36 : 31,828,272.24 = 9,853,100.96 : x
  2. Step 2: Convert to fraction form
    21,218,867.36/31,828,272.24 = 9,853,100.96/x
  3. Step 3: Cross multiply
    21,218,867.36x = 31,828,272.24 × 9,853,100.96
  4. Step 4: Simplify right side
    21,218,867.36x = 313,607,179,763,085.38
  5. Step 5: Solve for x
    x = 313,607,179,763,085.38/21,218,867.36
  6. Step 6: Final answer
    x = 14,779,638.07

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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.