Home / 21,283,816.80-31,925,725.20-8,506,293.60

Finding the Fourth Proportional to 21,283,816.80, 31,925,725.20 and 8,506,293.60

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Solution

The fourth proportional to 21,283,816.80, 31,925,725.20 and 8,506,293.60 is: 12,759,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283,816.80 : 31,925,725.20 = 8,506,293.60 : x
  2. Step 2: Convert to fraction form
    21,283,816.80/31,925,725.20 = 8,506,293.60/x
  3. Step 3: Cross multiply
    21,283,816.80x = 31,925,725.20 × 8,506,293.60
  4. Step 4: Simplify right side
    21,283,816.80x = 271,569,591,944,118.69
  5. Step 5: Solve for x
    x = 271,569,591,944,118.69/21,283,816.80
  6. Step 6: Final answer
    x = 12,759,440.40

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1.5x scale

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.