Home / 10,798,813.60-16,198,220.40-7,929,032.20

Finding the Fourth Proportional to 10,798,813.60, 16,198,220.40 and 7,929,032.20

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Solution

The fourth proportional to 10,798,813.60, 16,198,220.40 and 7,929,032.20 is: 11,893,548.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,798,813.60 : 16,198,220.40 = 7,929,032.20 : x
  2. Step 2: Convert to fraction form
    10,798,813.60/16,198,220.40 = 7,929,032.20/x
  3. Step 3: Cross multiply
    10,798,813.60x = 16,198,220.40 × 7,929,032.20
  4. Step 4: Simplify right side
    10,798,813.60x = 128,436,211,134,296.89
  5. Step 5: Solve for x
    x = 128,436,211,134,296.89/10,798,813.60
  6. Step 6: Final answer
    x = 11,893,548.30

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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.