Home / 3,151,872,002.80-4,727,808,004.20-1,431,945,218.80

Finding the Fourth Proportional to 3,151,872,002.80, 4,727,808,004.20 and 1,431,945,218.80

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Solution

The fourth proportional to 3,151,872,002.80, 4,727,808,004.20 and 1,431,945,218.80 is: 2,147,917,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151,872,002.80 : 4,727,808,004.20 = 1,431,945,218.80 : x
  2. Step 2: Convert to fraction form
    3,151,872,002.80/4,727,808,004.20 = 1,431,945,218.80/x
  3. Step 3: Cross multiply
    3,151,872,002.80x = 4,727,808,004.20 × 1,431,945,218.80
  4. Step 4: Simplify right side
    3,151,872,002.80x = 6,769,962,067,018,559,488
  5. Step 5: Solve for x
    x = 6,769,962,067,018,559,488/3,151,872,002.80
  6. Step 6: Final answer
    x = 2,147,917,828.20

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Double scale
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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.