Home / 12,987,036-17,922,051.36-7,478,400.96

Finding the Fourth Proportional to 12,987,036, 17,922,051.36 and 7,478,400.96

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Solution

The fourth proportional to 12,987,036, 17,922,051.36 and 7,478,400.96 is: 10,320,159.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,036 : 17,922,051.36 = 7,478,400.96 : x
  2. Step 2: Convert to fraction form
    12,987,036/17,922,051.36 = 7,478,400.96/x
  3. Step 3: Cross multiply
    12,987,036x = 17,922,051.36 × 7,478,400.96
  4. Step 4: Simplify right side
    12,987,036x = 134,028,286,095,793.30
  5. Step 5: Solve for x
    x = 134,028,286,095,793.30/12,987,036
  6. Step 6: Final answer
    x = 10,320,159.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.