Home / 20,834,418.40-31,251,627.60-12,772,261.60

Finding the Fourth Proportional to 20,834,418.40, 31,251,627.60 and 12,772,261.60

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Solution

The fourth proportional to 20,834,418.40, 31,251,627.60 and 12,772,261.60 is: 19,158,392.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834,418.40 : 31,251,627.60 = 12,772,261.60 : x
  2. Step 2: Convert to fraction form
    20,834,418.40/31,251,627.60 = 12,772,261.60/x
  3. Step 3: Cross multiply
    20,834,418.40x = 31,251,627.60 × 12,772,261.60
  4. Step 4: Simplify right side
    20,834,418.40x = 399,153,963,132,980.19
  5. Step 5: Solve for x
    x = 399,153,963,132,980.19/20,834,418.40
  6. Step 6: Final answer
    x = 19,158,392.40

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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.