Home / 21,018,128-29,005,008.96-11,360,336

Finding the Fourth Proportional to 21,018,128, 29,005,008.96 and 11,360,336

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Solution

The fourth proportional to 21,018,128, 29,005,008.96 and 11,360,336 is: 15,677,259.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,128 : 29,005,008.96 = 11,360,336 : x
  2. Step 2: Convert to fraction form
    21,018,128/29,005,008.96 = 11,360,336/x
  3. Step 3: Cross multiply
    21,018,128x = 29,005,008.96 × 11,360,336
  4. Step 4: Simplify right side
    21,018,128x = 329,506,647,468,610.56
  5. Step 5: Solve for x
    x = 329,506,647,468,610.56/21,018,128
  6. Step 6: Final answer
    x = 15,677,259.53

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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.