Home / 7,800,523.40-11,700,785.10-5,249,606.60

Finding the Fourth Proportional to 7,800,523.40, 11,700,785.10 and 5,249,606.60

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Solution

The fourth proportional to 7,800,523.40, 11,700,785.10 and 5,249,606.60 is: 7,874,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800,523.40 : 11,700,785.10 = 5,249,606.60 : x
  2. Step 2: Convert to fraction form
    7,800,523.40/11,700,785.10 = 5,249,606.60/x
  3. Step 3: Cross multiply
    7,800,523.40x = 11,700,785.10 × 5,249,606.60
  4. Step 4: Simplify right side
    7,800,523.40x = 61,424,518,686,141.66
  5. Step 5: Solve for x
    x = 61,424,518,686,141.66/7,800,523.40
  6. Step 6: Final answer
    x = 7,874,409.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.