Home / 21,781,411.60-32,672,117.40-18,795,427.60

Finding the Fourth Proportional to 21,781,411.60, 32,672,117.40 and 18,795,427.60

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Solution

The fourth proportional to 21,781,411.60, 32,672,117.40 and 18,795,427.60 is: 28,193,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781,411.60 : 32,672,117.40 = 18,795,427.60 : x
  2. Step 2: Convert to fraction form
    21,781,411.60/32,672,117.40 = 18,795,427.60/x
  3. Step 3: Cross multiply
    21,781,411.60x = 32,672,117.40 × 18,795,427.60
  4. Step 4: Simplify right side
    21,781,411.60x = 614,086,417,130,400.25
  5. Step 5: Solve for x
    x = 614,086,417,130,400.25/21,781,411.60
  6. Step 6: Final answer
    x = 28,193,141.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.