Home / 12,518,420.16-18,777,629.70-6,835,544.40

Finding the Fourth Proportional to 12,518,420.16, 18,777,629.70 and 6,835,544.40

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Solution

The fourth proportional to 12,518,420.16, 18,777,629.70 and 6,835,544.40 is: 10,253,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518,420.16 : 18,777,629.70 = 6,835,544.40 : x
  2. Step 2: Convert to fraction form
    12,518,420.16/18,777,629.70 = 6,835,544.40/x
  3. Step 3: Cross multiply
    12,518,420.16x = 18,777,629.70 × 6,835,544.40
  4. Step 4: Simplify right side
    12,518,420.16x = 128,355,321,541,108.69
  5. Step 5: Solve for x
    x = 128,355,321,541,108.69/12,518,420.16
  6. Step 6: Final answer
    x = 10,253,316.31

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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.