Home / 289,426,846.82-399,411,571.46-157,267,842.57

Finding the Fourth Proportional to 289,426,846.82, 399,411,571.46 and 157,267,842.57

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Solution

The fourth proportional to 289,426,846.82, 399,411,571.46 and 157,267,842.57 is: 217,030,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,426,846.82 : 399,411,571.46 = 157,267,842.57 : x
  2. Step 2: Convert to fraction form
    289,426,846.82/399,411,571.46 = 157,267,842.57/x
  3. Step 3: Cross multiply
    289,426,846.82x = 399,411,571.46 × 157,267,842.57
  4. Step 4: Simplify right side
    289,426,846.82x = 62,814,596,140,221,240
  5. Step 5: Solve for x
    x = 62,814,596,140,221,240/289,426,846.82
  6. Step 6: Final answer
    x = 217,030,993.60

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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.