Home / 12,356,911.40-18,535,367.10-10,656,300.20

Finding the Fourth Proportional to 12,356,911.40, 18,535,367.10 and 10,656,300.20

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Solution

The fourth proportional to 12,356,911.40, 18,535,367.10 and 10,656,300.20 is: 15,984,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,911.40 : 18,535,367.10 = 10,656,300.20 : x
  2. Step 2: Convert to fraction form
    12,356,911.40/18,535,367.10 = 10,656,300.20/x
  3. Step 3: Cross multiply
    12,356,911.40x = 18,535,367.10 × 10,656,300.20
  4. Step 4: Simplify right side
    12,356,911.40x = 197,518,436,134,803.44
  5. Step 5: Solve for x
    x = 197,518,436,134,803.44/12,356,911.40
  6. Step 6: Final answer
    x = 15,984,450.30

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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.