Home / 13,319,300.72-18,380,634.81-7,207,729.22

Finding the Fourth Proportional to 13,319,300.72, 18,380,634.81 and 7,207,729.22

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Solution

The fourth proportional to 13,319,300.72, 18,380,634.81 and 7,207,729.22 is: 9,946,666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,300.72 : 18,380,634.81 = 7,207,729.22 : x
  2. Step 2: Convert to fraction form
    13,319,300.72/18,380,634.81 = 7,207,729.22/x
  3. Step 3: Cross multiply
    13,319,300.72x = 18,380,634.81 × 7,207,729.22
  4. Step 4: Simplify right side
    13,319,300.72x = 132,482,638,602,186.14
  5. Step 5: Solve for x
    x = 132,482,638,602,186.14/13,319,300.72
  6. Step 6: Final answer
    x = 9,946,666.22

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1.5x scale

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.