Home / 21,947,486.40-30,287,203.20-12,157,901.28

Finding the Fourth Proportional to 21,947,486.40, 30,287,203.20 and 12,157,901.28

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Solution

The fourth proportional to 21,947,486.40, 30,287,203.20 and 12,157,901.28 is: 16,777,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947,486.40 : 30,287,203.20 = 12,157,901.28 : x
  2. Step 2: Convert to fraction form
    21,947,486.40/30,287,203.20 = 12,157,901.28/x
  3. Step 3: Cross multiply
    21,947,486.40x = 30,287,203.20 × 12,157,901.28
  4. Step 4: Simplify right side
    21,947,486.40x = 368,228,826,552,900.06
  5. Step 5: Solve for x
    x = 368,228,826,552,900.06/21,947,486.40
  6. Step 6: Final answer
    x = 16,777,722.05

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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.