Home / 21,195,062.40-31,806,590.40-12,097,142.40

Finding the Fourth Proportional to 21,195,062.40, 31,806,590.40 and 12,097,142.40

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Solution

The fourth proportional to 21,195,062.40, 31,806,590.40 and 12,097,142.40 is: 18,153,702.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195,062.40 : 31,806,590.40 = 12,097,142.40 : x
  2. Step 2: Convert to fraction form
    21,195,062.40/31,806,590.40 = 12,097,142.40/x
  3. Step 3: Cross multiply
    21,195,062.40x = 31,806,590.40 × 12,097,142.40
  4. Step 4: Simplify right side
    21,195,062.40x = 384,768,853,327,272.94
  5. Step 5: Solve for x
    x = 384,768,853,327,272.94/21,195,062.40
  6. Step 6: Final answer
    x = 18,153,702.31

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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.