Home / 6,417,820.80-9,626,731.20-4,990,147.20

Finding the Fourth Proportional to 6,417,820.80, 9,626,731.20 and 4,990,147.20

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Solution

The fourth proportional to 6,417,820.80, 9,626,731.20 and 4,990,147.20 is: 7,485,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,417,820.80 : 9,626,731.20 = 4,990,147.20 : x
  2. Step 2: Convert to fraction form
    6,417,820.80/9,626,731.20 = 4,990,147.20/x
  3. Step 3: Cross multiply
    6,417,820.80x = 9,626,731.20 × 4,990,147.20
  4. Step 4: Simplify right side
    6,417,820.80x = 48,038,805,742,832.64
  5. Step 5: Solve for x
    x = 48,038,805,742,832.64/6,417,820.80
  6. Step 6: Final answer
    x = 7,485,220.80

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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.