Home / 21,018,155.16-29,005,054.38-11,360,363.16

Finding the Fourth Proportional to 21,018,155.16, 29,005,054.38 and 11,360,363.16

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Solution

The fourth proportional to 21,018,155.16, 29,005,054.38 and 11,360,363.16 is: 15,677,301.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,155.16 : 29,005,054.38 = 11,360,363.16 : x
  2. Step 2: Convert to fraction form
    21,018,155.16/29,005,054.38 = 11,360,363.16/x
  3. Step 3: Cross multiply
    21,018,155.16x = 29,005,054.38 × 11,360,363.16
  4. Step 4: Simplify right side
    21,018,155.16x = 329,507,951,232,348.62
  5. Step 5: Solve for x
    x = 329,507,951,232,348.62/21,018,155.16
  6. Step 6: Final answer
    x = 15,677,301.30

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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.