Home / 13,740,809.40-20,611,214.10-8,697,814.20

Finding the Fourth Proportional to 13,740,809.40, 20,611,214.10 and 8,697,814.20

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Solution

The fourth proportional to 13,740,809.40, 20,611,214.10 and 8,697,814.20 is: 13,046,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740,809.40 : 20,611,214.10 = 8,697,814.20 : x
  2. Step 2: Convert to fraction form
    13,740,809.40/20,611,214.10 = 8,697,814.20/x
  3. Step 3: Cross multiply
    13,740,809.40x = 20,611,214.10 × 8,697,814.20
  4. Step 4: Simplify right side
    13,740,809.40x = 179,272,510,678,220.22
  5. Step 5: Solve for x
    x = 179,272,510,678,220.22/13,740,809.40
  6. Step 6: Final answer
    x = 13,046,721.30

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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.