Home / 8,150,059.80-12,225,089.70-5,280,278.40

Finding the Fourth Proportional to 8,150,059.80, 12,225,089.70 and 5,280,278.40

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Solution

The fourth proportional to 8,150,059.80, 12,225,089.70 and 5,280,278.40 is: 7,920,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,150,059.80 : 12,225,089.70 = 5,280,278.40 : x
  2. Step 2: Convert to fraction form
    8,150,059.80/12,225,089.70 = 5,280,278.40/x
  3. Step 3: Cross multiply
    8,150,059.80x = 12,225,089.70 × 5,280,278.40
  4. Step 4: Simplify right side
    8,150,059.80x = 64,551,877,080,972.48
  5. Step 5: Solve for x
    x = 64,551,877,080,972.48/8,150,059.80
  6. Step 6: Final answer
    x = 7,920,417.60

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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.