Home / 42,986,704.80-64,465,004.40-12,686,544.80

Finding the Fourth Proportional to 42,986,704.80, 64,465,004.40 and 12,686,544.80

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Solution

The fourth proportional to 42,986,704.80, 64,465,004.40 and 12,686,544.80 is: 19,025,374.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,986,704.80 : 64,465,004.40 = 12,686,544.80 : x
  2. Step 2: Convert to fraction form
    42,986,704.80/64,465,004.40 = 12,686,544.80/x
  3. Step 3: Cross multiply
    42,986,704.80x = 64,465,004.40 × 12,686,544.80
  4. Step 4: Simplify right side
    42,986,704.80x = 817,838,166,352,797.12
  5. Step 5: Solve for x
    x = 817,838,166,352,797.12/42,986,704.80
  6. Step 6: Final answer
    x = 19,025,374.71

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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.