Home / 13,248,047.20-19,872,070.80-8,146,213.60

Finding the Fourth Proportional to 13,248,047.20, 19,872,070.80 and 8,146,213.60

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Solution

The fourth proportional to 13,248,047.20, 19,872,070.80 and 8,146,213.60 is: 12,219,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248,047.20 : 19,872,070.80 = 8,146,213.60 : x
  2. Step 2: Convert to fraction form
    13,248,047.20/19,872,070.80 = 8,146,213.60/x
  3. Step 3: Cross multiply
    13,248,047.20x = 19,872,070.80 × 8,146,213.60
  4. Step 4: Simplify right side
    13,248,047.20x = 161,882,133,411,122.88
  5. Step 5: Solve for x
    x = 161,882,133,411,122.88/13,248,047.20
  6. Step 6: Final answer
    x = 12,219,320.40

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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.