Home / 628,123,218.03-941,748,516.45-278,178,592.41

Finding the Fourth Proportional to 628,123,218.03, 941,748,516.45 and 278,178,592.41

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Solution

The fourth proportional to 628,123,218.03, 941,748,516.45 and 278,178,592.41 is: 417,074,658.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,123,218.03 : 941,748,516.45 = 278,178,592.41 : x
  2. Step 2: Convert to fraction form
    628,123,218.03/941,748,516.45 = 278,178,592.41/x
  3. Step 3: Cross multiply
    628,123,218.03x = 941,748,516.45 × 278,178,592.41
  4. Step 4: Simplify right side
    628,123,218.03x = 261,974,276,710,266,784
  5. Step 5: Solve for x
    x = 261,974,276,710,266,784/628,123,218.03
  6. Step 6: Final answer
    x = 417,074,658.59

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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.