Home / 20,005,312.72-30,007,969.44-4,859,142.16

Finding the Fourth Proportional to 20,005,312.72, 30,007,969.44 and 4,859,142.16

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Solution

The fourth proportional to 20,005,312.72, 30,007,969.44 and 4,859,142.16 is: 7,288,713.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005,312.72 : 30,007,969.44 = 4,859,142.16 : x
  2. Step 2: Convert to fraction form
    20,005,312.72/30,007,969.44 = 4,859,142.16/x
  3. Step 3: Cross multiply
    20,005,312.72x = 30,007,969.44 × 4,859,142.16
  4. Step 4: Simplify right side
    20,005,312.72x = 145,812,989,441,895.59
  5. Step 5: Solve for x
    x = 145,812,989,441,895.59/20,005,312.72
  6. Step 6: Final answer
    x = 7,288,713.33

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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.