Home / 12,725,200.80-19,087,801.20-9,887,349.60

Finding the Fourth Proportional to 12,725,200.80, 19,087,801.20 and 9,887,349.60

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Solution

The fourth proportional to 12,725,200.80, 19,087,801.20 and 9,887,349.60 is: 14,831,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725,200.80 : 19,087,801.20 = 9,887,349.60 : x
  2. Step 2: Convert to fraction form
    12,725,200.80/19,087,801.20 = 9,887,349.60/x
  3. Step 3: Cross multiply
    12,725,200.80x = 19,087,801.20 × 9,887,349.60
  4. Step 4: Simplify right side
    12,725,200.80x = 188,727,763,559,699.50
  5. Step 5: Solve for x
    x = 188,727,763,559,699.50/12,725,200.80
  6. Step 6: Final answer
    x = 14,831,024.40

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Double scale
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Similar ratio
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1.5x scale

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.