Home / 6,911,999.20-10,367,998.80-5,208,882.40

Finding the Fourth Proportional to 6,911,999.20, 10,367,998.80 and 5,208,882.40

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Solution

The fourth proportional to 6,911,999.20, 10,367,998.80 and 5,208,882.40 is: 7,813,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911,999.20 : 10,367,998.80 = 5,208,882.40 : x
  2. Step 2: Convert to fraction form
    6,911,999.20/10,367,998.80 = 5,208,882.40/x
  3. Step 3: Cross multiply
    6,911,999.20x = 10,367,998.80 × 5,208,882.40
  4. Step 4: Simplify right side
    6,911,999.20x = 54,005,686,472,541.12
  5. Step 5: Solve for x
    x = 54,005,686,472,541.12/6,911,999.20
  6. Step 6: Final answer
    x = 7,813,323.60

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1.5x scale

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.