Home / 7,872,145.80-11,808,218.70-6,472,465.80

Finding the Fourth Proportional to 7,872,145.80, 11,808,218.70 and 6,472,465.80

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Solution

The fourth proportional to 7,872,145.80, 11,808,218.70 and 6,472,465.80 is: 9,708,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872,145.80 : 11,808,218.70 = 6,472,465.80 : x
  2. Step 2: Convert to fraction form
    7,872,145.80/11,808,218.70 = 6,472,465.80/x
  3. Step 3: Cross multiply
    7,872,145.80x = 11,808,218.70 × 6,472,465.80
  4. Step 4: Simplify right side
    7,872,145.80x = 76,428,291,694,670.45
  5. Step 5: Solve for x
    x = 76,428,291,694,670.45/7,872,145.80
  6. Step 6: Final answer
    x = 9,708,698.70

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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.