Home / 9,318,056.68-12,859,009.86-5,188,145.32

Finding the Fourth Proportional to 9,318,056.68, 12,859,009.86 and 5,188,145.32

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Solution

The fourth proportional to 9,318,056.68, 12,859,009.86 and 5,188,145.32 is: 7,159,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318,056.68 : 12,859,009.86 = 5,188,145.32 : x
  2. Step 2: Convert to fraction form
    9,318,056.68/12,859,009.86 = 5,188,145.32/x
  3. Step 3: Cross multiply
    9,318,056.68x = 12,859,009.86 × 5,188,145.32
  4. Step 4: Simplify right side
    9,318,056.68x = 66,714,411,824,992.86
  5. Step 5: Solve for x
    x = 66,714,411,824,992.86/9,318,056.68
  6. Step 6: Final answer
    x = 7,159,691.57

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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.