Home / 12,458,465.40-18,687,698.10-5,726,879.40

Finding the Fourth Proportional to 12,458,465.40, 18,687,698.10 and 5,726,879.40

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Solution

The fourth proportional to 12,458,465.40, 18,687,698.10 and 5,726,879.40 is: 8,590,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,465.40 : 18,687,698.10 = 5,726,879.40 : x
  2. Step 2: Convert to fraction form
    12,458,465.40/18,687,698.10 = 5,726,879.40/x
  3. Step 3: Cross multiply
    12,458,465.40x = 18,687,698.10 × 5,726,879.40
  4. Step 4: Simplify right side
    12,458,465.40x = 107,022,193,282,309.16
  5. Step 5: Solve for x
    x = 107,022,193,282,309.16/12,458,465.40
  6. Step 6: Final answer
    x = 8,590,319.10

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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.