Home / 12,097,347.20-18,146,020.80-9,074,038.40

Finding the Fourth Proportional to 12,097,347.20, 18,146,020.80 and 9,074,038.40

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Solution

The fourth proportional to 12,097,347.20, 18,146,020.80 and 9,074,038.40 is: 13,611,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,347.20 : 18,146,020.80 = 9,074,038.40 : x
  2. Step 2: Convert to fraction form
    12,097,347.20/18,146,020.80 = 9,074,038.40/x
  3. Step 3: Cross multiply
    12,097,347.20x = 18,146,020.80 × 9,074,038.40
  4. Step 4: Simplify right side
    12,097,347.20x = 164,657,689,546,398.72
  5. Step 5: Solve for x
    x = 164,657,689,546,398.72/12,097,347.20
  6. Step 6: Final answer
    x = 13,611,057.60

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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.