Home / 393,881,964.78-590,294,830.34-306,548,938.46

Finding the Fourth Proportional to 393,881,964.78, 590,294,830.34 and 306,548,938.46

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Solution

The fourth proportional to 393,881,964.78, 590,294,830.34 and 306,548,938.46 is: 459,412,386.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,881,964.78 : 590,294,830.34 = 306,548,938.46 : x
  2. Step 2: Convert to fraction form
    393,881,964.78/590,294,830.34 = 306,548,938.46/x
  3. Step 3: Cross multiply
    393,881,964.78x = 590,294,830.34 × 306,548,938.46
  4. Step 4: Simplify right side
    393,881,964.78x = 180,954,253,619,152,800
  5. Step 5: Solve for x
    x = 180,954,253,619,152,800/393,881,964.78
  6. Step 6: Final answer
    x = 459,412,386.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.