Home / 289,039,571.37-398,873,598.21-156,880,560.65

Finding the Fourth Proportional to 289,039,571.37, 398,873,598.21 and 156,880,560.65

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Solution

The fourth proportional to 289,039,571.37, 398,873,598.21 and 156,880,560.65 is: 216,494,625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,039,571.37 : 398,873,598.21 = 156,880,560.65 : x
  2. Step 2: Convert to fraction form
    289,039,571.37/398,873,598.21 = 156,880,560.65/x
  3. Step 3: Cross multiply
    289,039,571.37x = 398,873,598.21 × 156,880,560.65
  4. Step 4: Simplify right side
    289,039,571.37x = 62,575,513,713,673,272
  5. Step 5: Solve for x
    x = 62,575,513,713,673,272/289,039,571.37
  6. Step 6: Final answer
    x = 216,494,625.35

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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.