Home / 421,399,420.46-581,532,444.41-233,240,783.03

Finding the Fourth Proportional to 421,399,420.46, 581,532,444.41 and 233,240,783.03

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Solution

The fourth proportional to 421,399,420.46, 581,532,444.41 and 233,240,783.03 is: 321,872,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,399,420.46 : 581,532,444.41 = 233,240,783.03 : x
  2. Step 2: Convert to fraction form
    421,399,420.46/581,532,444.41 = 233,240,783.03/x
  3. Step 3: Cross multiply
    421,399,420.46x = 581,532,444.41 × 233,240,783.03
  4. Step 4: Simplify right side
    421,399,420.46x = 135,637,082,691,538,336
  5. Step 5: Solve for x
    x = 135,637,082,691,538,336/421,399,420.46
  6. Step 6: Final answer
    x = 321,872,969.22

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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.