Home / 7,878,894.87-10,872,894.20-4,394,459.42

Finding the Fourth Proportional to 7,878,894.87, 10,872,894.20 and 4,394,459.42

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Solution

The fourth proportional to 7,878,894.87, 10,872,894.20 and 4,394,459.42 is: 6,064,364.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,894.87 : 10,872,894.20 = 4,394,459.42 : x
  2. Step 2: Convert to fraction form
    7,878,894.87/10,872,894.20 = 4,394,459.42/x
  3. Step 3: Cross multiply
    7,878,894.87x = 10,872,894.20 × 4,394,459.42
  4. Step 4: Simplify right side
    7,878,894.87x = 47,780,492,263,516.59
  5. Step 5: Solve for x
    x = 47,780,492,263,516.59/7,878,894.87
  6. Step 6: Final answer
    x = 6,064,364.74

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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.