Home / 30,891,762.49-42,627,814.38-18,330,652.26

Finding the Fourth Proportional to 30,891,762.49, 42,627,814.38 and 18,330,652.26

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Solution

The fourth proportional to 30,891,762.49, 42,627,814.38 and 18,330,652.26 is: 25,294,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891,762.49 : 42,627,814.38 = 18,330,652.26 : x
  2. Step 2: Convert to fraction form
    30,891,762.49/42,627,814.38 = 18,330,652.26/x
  3. Step 3: Cross multiply
    30,891,762.49x = 42,627,814.38 × 18,330,652.26
  4. Step 4: Simplify right side
    30,891,762.49x = 781,395,642,003,607.62
  5. Step 5: Solve for x
    x = 781,395,642,003,607.62/30,891,762.49
  6. Step 6: Final answer
    x = 25,294,628.05

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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.