Home / 8,911,972.30-12,298,717.32-5,427,474.40

Finding the Fourth Proportional to 8,911,972.30, 12,298,717.32 and 5,427,474.40

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Solution

The fourth proportional to 8,911,972.30, 12,298,717.32 and 5,427,474.40 is: 7,490,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911,972.30 : 12,298,717.32 = 5,427,474.40 : x
  2. Step 2: Convert to fraction form
    8,911,972.30/12,298,717.32 = 5,427,474.40/x
  3. Step 3: Cross multiply
    8,911,972.30x = 12,298,717.32 × 5,427,474.40
  4. Step 4: Simplify right side
    8,911,972.30x = 66,750,973,407,136.62
  5. Step 5: Solve for x
    x = 66,750,973,407,136.62/8,911,972.30
  6. Step 6: Final answer
    x = 7,490,033.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.