Home / 38,143,183.76-52,637,226.81-20,739,532.40

Finding the Fourth Proportional to 38,143,183.76, 52,637,226.81 and 20,739,532.40

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Solution

The fourth proportional to 38,143,183.76, 52,637,226.81 and 20,739,532.40 is: 28,620,355.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143,183.76 : 52,637,226.81 = 20,739,532.40 : x
  2. Step 2: Convert to fraction form
    38,143,183.76/52,637,226.81 = 20,739,532.40/x
  3. Step 3: Cross multiply
    38,143,183.76x = 52,637,226.81 × 20,739,532.40
  4. Step 4: Simplify right side
    38,143,183.76x = 1,091,671,470,872,143.62
  5. Step 5: Solve for x
    x = 1,091,671,470,872,143.62/38,143,183.76
  6. Step 6: Final answer
    x = 28,620,355.28

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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.