Home / 6,642,971.40-9,964,457.10-1,851,400.20

Finding the Fourth Proportional to 6,642,971.40, 9,964,457.10 and 1,851,400.20

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Solution

The fourth proportional to 6,642,971.40, 9,964,457.10 and 1,851,400.20 is: 2,777,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,971.40 : 9,964,457.10 = 1,851,400.20 : x
  2. Step 2: Convert to fraction form
    6,642,971.40/9,964,457.10 = 1,851,400.20/x
  3. Step 3: Cross multiply
    6,642,971.40x = 9,964,457.10 × 1,851,400.20
  4. Step 4: Simplify right side
    6,642,971.40x = 18,448,197,867,831.42
  5. Step 5: Solve for x
    x = 18,448,197,867,831.42/6,642,971.40
  6. Step 6: Final answer
    x = 2,777,100.30

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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.