Home / 13,643,011.72-18,827,240.70-7,531,309

Finding the Fourth Proportional to 13,643,011.72, 18,827,240.70 and 7,531,309

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Solution

The fourth proportional to 13,643,011.72, 18,827,240.70 and 7,531,309 is: 10,393,142.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643,011.72 : 18,827,240.70 = 7,531,309 : x
  2. Step 2: Convert to fraction form
    13,643,011.72/18,827,240.70 = 7,531,309/x
  3. Step 3: Cross multiply
    13,643,011.72x = 18,827,240.70 × 7,531,309
  4. Step 4: Simplify right side
    13,643,011.72x = 141,793,767,329,076.28
  5. Step 5: Solve for x
    x = 141,793,767,329,076.28/13,643,011.72
  6. Step 6: Final answer
    x = 10,393,142.68

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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.