Home / 20,169,664.40-30,198,509.40-19,609,792.40

Finding the Fourth Proportional to 20,169,664.40, 30,198,509.40 and 19,609,792.40

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Solution

The fourth proportional to 20,169,664.40, 30,198,509.40 and 19,609,792.40 is: 29,360,255.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169,664.40 : 30,198,509.40 = 19,609,792.40 : x
  2. Step 2: Convert to fraction form
    20,169,664.40/30,198,509.40 = 19,609,792.40/x
  3. Step 3: Cross multiply
    20,169,664.40x = 30,198,509.40 × 19,609,792.40
  4. Step 4: Simplify right side
    20,169,664.40x = 592,186,500,123,448.50
  5. Step 5: Solve for x
    x = 592,186,500,123,448.50/20,169,664.40
  6. Step 6: Final answer
    x = 29,360,255.50

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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.