Home / 982,872,786.75-1,474,516,238.03-318,834,956.65

Finding the Fourth Proportional to 982,872,786.75, 1,474,516,238.03 and 318,834,956.65

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Solution

The fourth proportional to 982,872,786.75, 1,474,516,238.03 and 318,834,956.65 is: 478,319,602.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,872,786.75 : 1,474,516,238.03 = 318,834,956.65 : x
  2. Step 2: Convert to fraction form
    982,872,786.75/1,474,516,238.03 = 318,834,956.65/x
  3. Step 3: Cross multiply
    982,872,786.75x = 1,474,516,238.03 × 318,834,956.65
  4. Step 4: Simplify right side
    982,872,786.75x = 470,127,320,829,126,912
  5. Step 5: Solve for x
    x = 470,127,320,829,126,912/982,872,786.75
  6. Step 6: Final answer
    x = 478,319,602.67

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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.