Home / 154,784,765.28-213,596,571.92-84,220,665.92

Finding the Fourth Proportional to 154,784,765.28, 213,596,571.92 and 84,220,665.92

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Solution

The fourth proportional to 154,784,765.28, 213,596,571.92 and 84,220,665.92 is: 116,221,034.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,784,765.28 : 213,596,571.92 = 84,220,665.92 : x
  2. Step 2: Convert to fraction form
    154,784,765.28/213,596,571.92 = 84,220,665.92/x
  3. Step 3: Cross multiply
    154,784,765.28x = 213,596,571.92 × 84,220,665.92
  4. Step 4: Simplify right side
    154,784,765.28x = 17,989,245,525,331,572
  5. Step 5: Solve for x
    x = 17,989,245,525,331,572/154,784,765.28
  6. Step 6: Final answer
    x = 116,221,034.37

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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.