Home / 12,463,643.80-18,695,465.70-11,269,250.20

Finding the Fourth Proportional to 12,463,643.80, 18,695,465.70 and 11,269,250.20

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Solution

The fourth proportional to 12,463,643.80, 18,695,465.70 and 11,269,250.20 is: 16,903,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463,643.80 : 18,695,465.70 = 11,269,250.20 : x
  2. Step 2: Convert to fraction form
    12,463,643.80/18,695,465.70 = 11,269,250.20/x
  3. Step 3: Cross multiply
    12,463,643.80x = 18,695,465.70 × 11,269,250.20
  4. Step 4: Simplify right side
    12,463,643.80x = 210,683,880,578,818.12
  5. Step 5: Solve for x
    x = 210,683,880,578,818.12/12,463,643.80
  6. Step 6: Final answer
    x = 16,903,875.30

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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.