Home / 487,210,958.31-730,524,578.61-155,074,492.79

Finding the Fourth Proportional to 487,210,958.31, 730,524,578.61 and 155,074,492.79

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Solution

The fourth proportional to 487,210,958.31, 730,524,578.61 and 155,074,492.79 is: 232,518,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,210,958.31 : 730,524,578.61 = 155,074,492.79 : x
  2. Step 2: Convert to fraction form
    487,210,958.31/730,524,578.61 = 155,074,492.79/x
  3. Step 3: Cross multiply
    487,210,958.31x = 730,524,578.61 × 155,074,492.79
  4. Step 4: Simplify right side
    487,210,958.31x = 113,285,728,498,574,224
  5. Step 5: Solve for x
    x = 113,285,728,498,574,224/487,210,958.31
  6. Step 6: Final answer
    x = 232,518,843.36

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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.