Home / 213,538,963.20-320,308,444.80-145,010,630.40

Finding the Fourth Proportional to 213,538,963.20, 320,308,444.80 and 145,010,630.40

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Solution

The fourth proportional to 213,538,963.20, 320,308,444.80 and 145,010,630.40 is: 217,515,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,538,963.20 : 320,308,444.80 = 145,010,630.40 : x
  2. Step 2: Convert to fraction form
    213,538,963.20/320,308,444.80 = 145,010,630.40/x
  3. Step 3: Cross multiply
    213,538,963.20x = 320,308,444.80 × 145,010,630.40
  4. Step 4: Simplify right side
    213,538,963.20x = 46,448,129,502,891,608
  5. Step 5: Solve for x
    x = 46,448,129,502,891,608/213,538,963.20
  6. Step 6: Final answer
    x = 217,515,945.60

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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.