Home / 21,762,062.81-30,031,646.34-11,972,296.89

Finding the Fourth Proportional to 21,762,062.81, 30,031,646.34 and 11,972,296.89

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Solution

The fourth proportional to 21,762,062.81, 30,031,646.34 and 11,972,296.89 is: 16,521,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762,062.81 : 30,031,646.34 = 11,972,296.89 : x
  2. Step 2: Convert to fraction form
    21,762,062.81/30,031,646.34 = 11,972,296.89/x
  3. Step 3: Cross multiply
    21,762,062.81x = 30,031,646.34 × 11,972,296.89
  4. Step 4: Simplify right side
    21,762,062.81x = 359,547,786,077,961.88
  5. Step 5: Solve for x
    x = 359,547,786,077,961.88/21,762,062.81
  6. Step 6: Final answer
    x = 16,521,769.53

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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.