Home / 20,553,975.60-30,830,963.40-12,043,921.20

Finding the Fourth Proportional to 20,553,975.60, 30,830,963.40 and 12,043,921.20

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Solution

The fourth proportional to 20,553,975.60, 30,830,963.40 and 12,043,921.20 is: 18,065,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553,975.60 : 30,830,963.40 = 12,043,921.20 : x
  2. Step 2: Convert to fraction form
    20,553,975.60/30,830,963.40 = 12,043,921.20/x
  3. Step 3: Cross multiply
    20,553,975.60x = 30,830,963.40 × 12,043,921.20
  4. Step 4: Simplify right side
    20,553,975.60x = 371,325,693,709,684.06
  5. Step 5: Solve for x
    x = 371,325,693,709,684.06/20,553,975.60
  6. Step 6: Final answer
    x = 18,065,881.80

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1.5x scale

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.