Home / 13,303,479.70-19,960,468.35-5,215,078.90

Finding the Fourth Proportional to 13,303,479.70, 19,960,468.35 and 5,215,078.90

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Solution

The fourth proportional to 13,303,479.70, 19,960,468.35 and 5,215,078.90 is: 7,824,675.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303,479.70 : 19,960,468.35 = 5,215,078.90 : x
  2. Step 2: Convert to fraction form
    13,303,479.70/19,960,468.35 = 5,215,078.90/x
  3. Step 3: Cross multiply
    13,303,479.70x = 19,960,468.35 × 5,215,078.90
  4. Step 4: Simplify right side
    13,303,479.70x = 104,095,417,326,202.83
  5. Step 5: Solve for x
    x = 104,095,417,326,202.83/13,303,479.70
  6. Step 6: Final answer
    x = 7,824,675.92

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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.