Home / 383,818,964.40-575,728,446.60-254,572,513.20

Finding the Fourth Proportional to 383,818,964.40, 575,728,446.60 and 254,572,513.20

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Solution

The fourth proportional to 383,818,964.40, 575,728,446.60 and 254,572,513.20 is: 381,858,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,818,964.40 : 575,728,446.60 = 254,572,513.20 : x
  2. Step 2: Convert to fraction form
    383,818,964.40/575,728,446.60 = 254,572,513.20/x
  3. Step 3: Cross multiply
    383,818,964.40x = 575,728,446.60 × 254,572,513.20
  4. Step 4: Simplify right side
    383,818,964.40x = 146,564,637,571,693,984
  5. Step 5: Solve for x
    x = 146,564,637,571,693,984/383,818,964.40
  6. Step 6: Final answer
    x = 381,858,769.80

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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.