Home / 19,176,822.30-28,765,233.45-7,811,420.70

Finding the Fourth Proportional to 19,176,822.30, 28,765,233.45 and 7,811,420.70

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Solution

The fourth proportional to 19,176,822.30, 28,765,233.45 and 7,811,420.70 is: 11,717,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176,822.30 : 28,765,233.45 = 7,811,420.70 : x
  2. Step 2: Convert to fraction form
    19,176,822.30/28,765,233.45 = 7,811,420.70/x
  3. Step 3: Cross multiply
    19,176,822.30x = 28,765,233.45 × 7,811,420.70
  4. Step 4: Simplify right side
    19,176,822.30x = 224,697,340,011,662.41
  5. Step 5: Solve for x
    x = 224,697,340,011,662.41/19,176,822.30
  6. Step 6: Final answer
    x = 11,717,131.05

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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.