Home / 313,686,481.61-432,884,955.62-172,554,670.78

Finding the Fourth Proportional to 313,686,481.61, 432,884,955.62 and 172,554,670.78

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Solution

The fourth proportional to 313,686,481.61, 432,884,955.62 and 172,554,670.78 is: 238,124,131.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,686,481.61 : 432,884,955.62 = 172,554,670.78 : x
  2. Step 2: Convert to fraction form
    313,686,481.61/432,884,955.62 = 172,554,670.78/x
  3. Step 3: Cross multiply
    313,686,481.61x = 432,884,955.62 × 172,554,670.78
  4. Step 4: Simplify right side
    313,686,481.61x = 74,696,321,001,973,184
  5. Step 5: Solve for x
    x = 74,696,321,001,973,184/313,686,481.61
  6. Step 6: Final answer
    x = 238,124,131.52

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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.