Home / 6,144,117-8,478,863.90-3,390,784.44

Finding the Fourth Proportional to 6,144,117, 8,478,863.90 and 3,390,784.44

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Solution

The fourth proportional to 6,144,117, 8,478,863.90 and 3,390,784.44 is: 4,679,272.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,144,117 : 8,478,863.90 = 3,390,784.44 : x
  2. Step 2: Convert to fraction form
    6,144,117/8,478,863.90 = 3,390,784.44/x
  3. Step 3: Cross multiply
    6,144,117x = 8,478,863.90 × 3,390,784.44
  4. Step 4: Simplify right side
    6,144,117x = 28,749,999,780,997.71
  5. Step 5: Solve for x
    x = 28,749,999,780,997.71/6,144,117
  6. Step 6: Final answer
    x = 4,679,272.84

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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.