Home / 21,678,312.96-29,914,444.80-11,887,188.48

Finding the Fourth Proportional to 21,678,312.96, 29,914,444.80 and 11,887,188.48

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Solution

The fourth proportional to 21,678,312.96, 29,914,444.80 and 11,887,188.48 is: 16,403,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678,312.96 : 29,914,444.80 = 11,887,188.48 : x
  2. Step 2: Convert to fraction form
    21,678,312.96/29,914,444.80 = 11,887,188.48/x
  3. Step 3: Cross multiply
    21,678,312.96x = 29,914,444.80 × 11,887,188.48
  4. Step 4: Simplify right side
    21,678,312.96x = 355,598,643,612,155.94
  5. Step 5: Solve for x
    x = 355,598,643,612,155.94/21,678,312.96
  6. Step 6: Final answer
    x = 16,403,427.90

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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.