Home / 421,190,724.12-581,218,946.46-233,007,929.88

Finding the Fourth Proportional to 421,190,724.12, 581,218,946.46 and 233,007,929.88

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Solution

The fourth proportional to 421,190,724.12, 581,218,946.46 and 233,007,929.88 is: 321,537,526.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,190,724.12 : 581,218,946.46 = 233,007,929.88 : x
  2. Step 2: Convert to fraction form
    421,190,724.12/581,218,946.46 = 233,007,929.88/x
  3. Step 3: Cross multiply
    421,190,724.12x = 581,218,946.46 × 233,007,929.88
  4. Step 4: Simplify right side
    421,190,724.12x = 135,428,623,521,679,168
  5. Step 5: Solve for x
    x = 135,428,623,521,679,168/421,190,724.12
  6. Step 6: Final answer
    x = 321,537,526.27

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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.