Home / 21,318,511.20-31,968,435.60-8,534,767.20

Finding the Fourth Proportional to 21,318,511.20, 31,968,435.60 and 8,534,767.20

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Solution

The fourth proportional to 21,318,511.20, 31,968,435.60 and 8,534,767.20 is: 12,798,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318,511.20 : 31,968,435.60 = 8,534,767.20 : x
  2. Step 2: Convert to fraction form
    21,318,511.20/31,968,435.60 = 8,534,767.20/x
  3. Step 3: Cross multiply
    21,318,511.20x = 31,968,435.60 × 8,534,767.20
  4. Step 4: Simplify right side
    21,318,511.20x = 272,843,155,594,192.31
  5. Step 5: Solve for x
    x = 272,843,155,594,192.31/21,318,511.20
  6. Step 6: Final answer
    x = 12,798,415.10

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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.