Home / 6,415,999.20-9,623,998.80-1,928,275.20

Finding the Fourth Proportional to 6,415,999.20, 9,623,998.80 and 1,928,275.20

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Solution

The fourth proportional to 6,415,999.20, 9,623,998.80 and 1,928,275.20 is: 2,892,412.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415,999.20 : 9,623,998.80 = 1,928,275.20 : x
  2. Step 2: Convert to fraction form
    6,415,999.20/9,623,998.80 = 1,928,275.20/x
  3. Step 3: Cross multiply
    6,415,999.20x = 9,623,998.80 × 1,928,275.20
  4. Step 4: Simplify right side
    6,415,999.20x = 18,557,718,210,869.76
  5. Step 5: Solve for x
    x = 18,557,718,210,869.76/6,415,999.20
  6. Step 6: Final answer
    x = 2,892,412.80

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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.