Home / 12,687,782.08-19,035,771.80-5,868,828.35

Finding the Fourth Proportional to 12,687,782.08, 19,035,771.80 and 5,868,828.35

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Solution

The fourth proportional to 12,687,782.08, 19,035,771.80 and 5,868,828.35 is: 8,805,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,782.08 : 19,035,771.80 = 5,868,828.35 : x
  2. Step 2: Convert to fraction form
    12,687,782.08/19,035,771.80 = 5,868,828.35/x
  3. Step 3: Cross multiply
    12,687,782.08x = 19,035,771.80 × 5,868,828.35
  4. Step 4: Simplify right side
    12,687,782.08x = 111,717,677,203,970.53
  5. Step 5: Solve for x
    x = 111,717,677,203,970.53/12,687,782.08
  6. Step 6: Final answer
    x = 8,805,138.40

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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.