Home / 13,531,630.78-18,655,585.05-10,749,983.59

Finding the Fourth Proportional to 13,531,630.78, 18,655,585.05 and 10,749,983.59

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Solution

The fourth proportional to 13,531,630.78, 18,655,585.05 and 10,749,983.59 is: 14,820,625.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531,630.78 : 18,655,585.05 = 10,749,983.59 : x
  2. Step 2: Convert to fraction form
    13,531,630.78/18,655,585.05 = 10,749,983.59/x
  3. Step 3: Cross multiply
    13,531,630.78x = 18,655,585.05 × 10,749,983.59
  4. Step 4: Simplify right side
    13,531,630.78x = 200,547,233,149,349.34
  5. Step 5: Solve for x
    x = 200,547,233,149,349.34/13,531,630.78
  6. Step 6: Final answer
    x = 14,820,625.57

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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.