Home / 12,554,641.40-18,831,962.10-11,798,814.20

Finding the Fourth Proportional to 12,554,641.40, 18,831,962.10 and 11,798,814.20

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Solution

The fourth proportional to 12,554,641.40, 18,831,962.10 and 11,798,814.20 is: 17,698,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554,641.40 : 18,831,962.10 = 11,798,814.20 : x
  2. Step 2: Convert to fraction form
    12,554,641.40/18,831,962.10 = 11,798,814.20/x
  3. Step 3: Cross multiply
    12,554,641.40x = 18,831,962.10 × 11,798,814.20
  4. Step 4: Simplify right side
    12,554,641.40x = 222,194,821,839,341.81
  5. Step 5: Solve for x
    x = 222,194,821,839,341.81/12,554,641.40
  6. Step 6: Final answer
    x = 17,698,221.30

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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.