Home / 171,718,080-257,544,264.76-66,673,425.28

Finding the Fourth Proportional to 171,718,080, 257,544,264.76 and 66,673,425.28

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Solution

The fourth proportional to 171,718,080, 257,544,264.76 and 66,673,425.28 is: 99,997,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,718,080 : 257,544,264.76 = 66,673,425.28 : x
  2. Step 2: Convert to fraction form
    171,718,080/257,544,264.76 = 66,673,425.28/x
  3. Step 3: Cross multiply
    171,718,080x = 257,544,264.76 × 66,673,425.28
  4. Step 4: Simplify right side
    171,718,080x = 17,171,358,292,768,396
  5. Step 5: Solve for x
    x = 17,171,358,292,768,396/171,718,080
  6. Step 6: Final answer
    x = 99,997,381.13

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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.