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Finding the Fourth Proportional to 8,697,401.80, 13,046,102.70 and 8,201,390.20

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Solution

The fourth proportional to 8,697,401.80, 13,046,102.70 and 8,201,390.20 is: 12,302,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697,401.80 : 13,046,102.70 = 8,201,390.20 : x
  2. Step 2: Convert to fraction form
    8,697,401.80/13,046,102.70 = 8,201,390.20/x
  3. Step 3: Cross multiply
    8,697,401.80x = 13,046,102.70 × 8,201,390.20
  4. Step 4: Simplify right side
    8,697,401.80x = 106,996,178,831,973.53
  5. Step 5: Solve for x
    x = 106,996,178,831,973.53/8,697,401.80
  6. Step 6: Final answer
    x = 12,302,085.30

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Double scale
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Similar ratio
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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.