Home / 12,763,616.80-19,119,620.40-7,956,551.20

Finding the Fourth Proportional to 12,763,616.80, 19,119,620.40 and 7,956,551.20

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Solution

The fourth proportional to 12,763,616.80, 19,119,620.40 and 7,956,551.20 is: 11,918,740.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763,616.80 : 19,119,620.40 = 7,956,551.20 : x
  2. Step 2: Convert to fraction form
    12,763,616.80/19,119,620.40 = 7,956,551.20/x
  3. Step 3: Cross multiply
    12,763,616.80x = 19,119,620.40 × 7,956,551.20
  4. Step 4: Simplify right side
    12,763,616.80x = 152,126,238,637,164.47
  5. Step 5: Solve for x
    x = 152,126,238,637,164.47/12,763,616.80
  6. Step 6: Final answer
    x = 11,918,740.67

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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.