Home / 6,478,336.40-9,726,259.80-3,785,421.20

Finding the Fourth Proportional to 6,478,336.40, 9,726,259.80 and 3,785,421.20

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Solution

The fourth proportional to 6,478,336.40, 9,726,259.80 and 3,785,421.20 is: 5,683,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,478,336.40 : 9,726,259.80 = 3,785,421.20 : x
  2. Step 2: Convert to fraction form
    6,478,336.40/9,726,259.80 = 3,785,421.20/x
  3. Step 3: Cross multiply
    6,478,336.40x = 9,726,259.80 × 3,785,421.20
  4. Step 4: Simplify right side
    6,478,336.40x = 36,817,990,043,627.77
  5. Step 5: Solve for x
    x = 36,817,990,043,627.77/6,478,336.40
  6. Step 6: Final answer
    x = 5,683,247.64

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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.