Home / 10,897,689.60-16,362,280.80-8,220,801.60

Finding the Fourth Proportional to 10,897,689.60, 16,362,280.80 and 8,220,801.60

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Solution

The fourth proportional to 10,897,689.60, 16,362,280.80 and 8,220,801.60 is: 12,343,080.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,897,689.60 : 16,362,280.80 = 8,220,801.60 : x
  2. Step 2: Convert to fraction form
    10,897,689.60/16,362,280.80 = 8,220,801.60/x
  3. Step 3: Cross multiply
    10,897,689.60x = 16,362,280.80 × 8,220,801.60
  4. Step 4: Simplify right side
    10,897,689.60x = 134,511,064,180,289.28
  5. Step 5: Solve for x
    x = 134,511,064,180,289.28/10,897,689.60
  6. Step 6: Final answer
    x = 12,343,080.88

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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.