Home / 372,312,220.98-513,774,284.40-213,428,440.56

Finding the Fourth Proportional to 372,312,220.98, 513,774,284.40 and 213,428,440.56

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Solution

The fourth proportional to 372,312,220.98, 513,774,284.40 and 213,428,440.56 is: 294,521,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,312,220.98 : 513,774,284.40 = 213,428,440.56 : x
  2. Step 2: Convert to fraction form
    372,312,220.98/513,774,284.40 = 213,428,440.56/x
  3. Step 3: Cross multiply
    372,312,220.98x = 513,774,284.40 × 213,428,440.56
  4. Step 4: Simplify right side
    372,312,220.98x = 109,654,044,319,321,936
  5. Step 5: Solve for x
    x = 109,654,044,319,321,936/372,312,220.98
  6. Step 6: Final answer
    x = 294,521,743.15

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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.