Home / 319,370,291.28-440,730,693.36-172,692,225.36

Finding the Fourth Proportional to 319,370,291.28, 440,730,693.36 and 172,692,225.36

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Solution

The fourth proportional to 319,370,291.28, 440,730,693.36 and 172,692,225.36 is: 238,315,104.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,370,291.28 : 440,730,693.36 = 172,692,225.36 : x
  2. Step 2: Convert to fraction form
    319,370,291.28/440,730,693.36 = 172,692,225.36/x
  3. Step 3: Cross multiply
    319,370,291.28x = 440,730,693.36 × 172,692,225.36
  4. Step 4: Simplify right side
    319,370,291.28x = 76,110,764,220,794,192
  5. Step 5: Solve for x
    x = 76,110,764,220,794,192/319,370,291.28
  6. Step 6: Final answer
    x = 238,315,104.12

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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.