Home / 21,459,312.81-29,613,441.11-11,801,520.81

Finding the Fourth Proportional to 21,459,312.81, 29,613,441.11 and 11,801,520.81

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Solution

The fourth proportional to 21,459,312.81, 29,613,441.11 and 11,801,520.81 is: 16,285,872.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459,312.81 : 29,613,441.11 = 11,801,520.81 : x
  2. Step 2: Convert to fraction form
    21,459,312.81/29,613,441.11 = 11,801,520.81/x
  3. Step 3: Cross multiply
    21,459,312.81x = 29,613,441.11 × 11,801,520.81
  4. Step 4: Simplify right side
    21,459,312.81x = 349,483,641,456,366.94
  5. Step 5: Solve for x
    x = 349,483,641,456,366.94/21,459,312.81
  6. Step 6: Final answer
    x = 16,285,872.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.