Home / 213,132,397.80-319,698,596.70-144,257,644.20

Finding the Fourth Proportional to 213,132,397.80, 319,698,596.70 and 144,257,644.20

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Solution

The fourth proportional to 213,132,397.80, 319,698,596.70 and 144,257,644.20 is: 216,386,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,132,397.80 : 319,698,596.70 = 144,257,644.20 : x
  2. Step 2: Convert to fraction form
    213,132,397.80/319,698,596.70 = 144,257,644.20/x
  3. Step 3: Cross multiply
    213,132,397.80x = 319,698,596.70 × 144,257,644.20
  4. Step 4: Simplify right side
    213,132,397.80x = 46,118,966,413,987,888
  5. Step 5: Solve for x
    x = 46,118,966,413,987,888/213,132,397.80
  6. Step 6: Final answer
    x = 216,386,466.30

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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.