Home / 12,085,282.80-18,090,599.40-7,021,551.60

Finding the Fourth Proportional to 12,085,282.80, 18,090,599.40 and 7,021,551.60

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Solution

The fourth proportional to 12,085,282.80, 18,090,599.40 and 7,021,551.60 is: 10,510,641.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085,282.80 : 18,090,599.40 = 7,021,551.60 : x
  2. Step 2: Convert to fraction form
    12,085,282.80/18,090,599.40 = 7,021,551.60/x
  3. Step 3: Cross multiply
    12,085,282.80x = 18,090,599.40 × 7,021,551.60
  4. Step 4: Simplify right side
    12,085,282.80x = 127,024,077,162,029.02
  5. Step 5: Solve for x
    x = 127,024,077,162,029.02/12,085,282.80
  6. Step 6: Final answer
    x = 10,510,641.68

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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.