Home / 13,035,998.80-19,553,998.20-7,990,152.40

Finding the Fourth Proportional to 13,035,998.80, 19,553,998.20 and 7,990,152.40

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Solution

The fourth proportional to 13,035,998.80, 19,553,998.20 and 7,990,152.40 is: 11,985,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035,998.80 : 19,553,998.20 = 7,990,152.40 : x
  2. Step 2: Convert to fraction form
    13,035,998.80/19,553,998.20 = 7,990,152.40/x
  3. Step 3: Cross multiply
    13,035,998.80x = 19,553,998.20 × 7,990,152.40
  4. Step 4: Simplify right side
    13,035,998.80x = 156,239,425,647,325.69
  5. Step 5: Solve for x
    x = 156,239,425,647,325.69/13,035,998.80
  6. Step 6: Final answer
    x = 11,985,228.60

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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.