Home / 10,528,483.20-15,804,534.60-8,142,903.60

Finding the Fourth Proportional to 10,528,483.20, 15,804,534.60 and 8,142,903.60

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Solution

The fourth proportional to 10,528,483.20, 15,804,534.60 and 8,142,903.60 is: 12,223,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528,483.20 : 15,804,534.60 = 8,142,903.60 : x
  2. Step 2: Convert to fraction form
    10,528,483.20/15,804,534.60 = 8,142,903.60/x
  3. Step 3: Cross multiply
    10,528,483.20x = 15,804,534.60 × 8,142,903.60
  4. Step 4: Simplify right side
    10,528,483.20x = 128,694,801,690,664.55
  5. Step 5: Solve for x
    x = 128,694,801,690,664.55/10,528,483.20
  6. Step 6: Final answer
    x = 12,223,489.30

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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.