Home / 319,421,031.60-440,802,352.26-172,743,315.60

Finding the Fourth Proportional to 319,421,031.60, 440,802,352.26 and 172,743,315.60

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Solution

The fourth proportional to 319,421,031.60, 440,802,352.26 and 172,743,315.60 is: 238,386,494.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,421,031.60 : 440,802,352.26 = 172,743,315.60 : x
  2. Step 2: Convert to fraction form
    319,421,031.60/440,802,352.26 = 172,743,315.60/x
  3. Step 3: Cross multiply
    319,421,031.60x = 440,802,352.26 × 172,743,315.60
  4. Step 4: Simplify right side
    319,421,031.60x = 76,145,659,853,671,552
  5. Step 5: Solve for x
    x = 76,145,659,853,671,552/319,421,031.60
  6. Step 6: Final answer
    x = 238,386,494.06

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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.