Home / 21,657,813.28-29,887,782.48-12,000,021.28

Finding the Fourth Proportional to 21,657,813.28, 29,887,782.48 and 12,000,021.28

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Solution

The fourth proportional to 21,657,813.28, 29,887,782.48 and 12,000,021.28 is: 16,560,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,657,813.28 : 29,887,782.48 = 12,000,021.28 : x
  2. Step 2: Convert to fraction form
    21,657,813.28/29,887,782.48 = 12,000,021.28/x
  3. Step 3: Cross multiply
    21,657,813.28x = 29,887,782.48 × 12,000,021.28
  4. Step 4: Simplify right side
    21,657,813.28x = 358,654,025,772,011.19
  5. Step 5: Solve for x
    x = 358,654,025,772,011.19/21,657,813.28
  6. Step 6: Final answer
    x = 16,560,029.45

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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.