Home / 278,120,935.11-383,826,289.55-183,871,331.67

Finding the Fourth Proportional to 278,120,935.11, 383,826,289.55 and 183,871,331.67

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Solution

The fourth proportional to 278,120,935.11, 383,826,289.55 and 183,871,331.67 is: 253,755,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,120,935.11 : 383,826,289.55 = 183,871,331.67 : x
  2. Step 2: Convert to fraction form
    278,120,935.11/383,826,289.55 = 183,871,331.67/x
  3. Step 3: Cross multiply
    278,120,935.11x = 383,826,289.55 × 183,871,331.67
  4. Step 4: Simplify right side
    278,120,935.11x = 70,574,650,988,594,144
  5. Step 5: Solve for x
    x = 70,574,650,988,594,144/278,120,935.11
  6. Step 6: Final answer
    x = 253,755,262.83

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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.