Home / 7,857,880.47-10,834,597.26-5,378,295.60

Finding the Fourth Proportional to 7,857,880.47, 10,834,597.26 and 5,378,295.60

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Solution

The fourth proportional to 7,857,880.47, 10,834,597.26 and 5,378,295.60 is: 7,415,697.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857,880.47 : 10,834,597.26 = 5,378,295.60 : x
  2. Step 2: Convert to fraction form
    7,857,880.47/10,834,597.26 = 5,378,295.60/x
  3. Step 3: Cross multiply
    7,857,880.47x = 10,834,597.26 × 5,378,295.60
  4. Step 4: Simplify right side
    7,857,880.47x = 58,271,666,771,230.05
  5. Step 5: Solve for x
    x = 58,271,666,771,230.05/7,857,880.47
  6. Step 6: Final answer
    x = 7,415,697.78

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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.