Home / 20,553,661.60-30,830,492.40-12,043,607.20

Finding the Fourth Proportional to 20,553,661.60, 30,830,492.40 and 12,043,607.20

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Solution

The fourth proportional to 20,553,661.60, 30,830,492.40 and 12,043,607.20 is: 18,065,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553,661.60 : 30,830,492.40 = 12,043,607.20 : x
  2. Step 2: Convert to fraction form
    20,553,661.60/30,830,492.40 = 12,043,607.20/x
  3. Step 3: Cross multiply
    20,553,661.60x = 30,830,492.40 × 12,043,607.20
  4. Step 4: Simplify right side
    20,553,661.60x = 371,310,340,248,185.25
  5. Step 5: Solve for x
    x = 371,310,340,248,185.25/20,553,661.60
  6. Step 6: Final answer
    x = 18,065,410.80

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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.