Home / 6,984,210.60-9,638,113.86-3,928,426.92

Finding the Fourth Proportional to 6,984,210.60, 9,638,113.86 and 3,928,426.92

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Solution

The fourth proportional to 6,984,210.60, 9,638,113.86 and 3,928,426.92 is: 5,421,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984,210.60 : 9,638,113.86 = 3,928,426.92 : x
  2. Step 2: Convert to fraction form
    6,984,210.60/9,638,113.86 = 3,928,426.92/x
  3. Step 3: Cross multiply
    6,984,210.60x = 9,638,113.86 × 3,928,426.92
  4. Step 4: Simplify right side
    6,984,210.60x = 37,862,625,945,649.11
  5. Step 5: Solve for x
    x = 37,862,625,945,649.11/6,984,210.60
  6. Step 6: Final answer
    x = 5,421,174.72

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.