Home / 402,702,182,620.45-556,455,950,059.75-286,757,649,698.72

Finding the Fourth Proportional to 402,702,182,620.45, 556,455,950,059.75 and 286,757,649,698.72

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Solution

The fourth proportional to 402,702,182,620.45, 556,455,950,059.75 and 286,757,649,698.72 is: 396,243,197,296.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,702,182,620.45 : 556,455,950,059.75 = 286,757,649,698.72 : x
  2. Step 2: Convert to fraction form
    402,702,182,620.45/556,455,950,059.75 = 286,757,649,698.72/x
  3. Step 3: Cross multiply
    402,702,182,620.45x = 556,455,950,059.75 × 286,757,649,698.72
  4. Step 4: Simplify right side
    402,702,182,620.45x = 159,568,000,400,002,195,128,320
  5. Step 5: Solve for x
    x = 159,568,000,400,002,195,128,320/402,702,182,620.45
  6. Step 6: Final answer
    x = 396,243,197,296.99

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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.