Home / 213,163,212.80-319,319,666.40-148,539,987.20

Finding the Fourth Proportional to 213,163,212.80, 319,319,666.40 and 148,539,987.20

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Solution

The fourth proportional to 213,163,212.80, 319,319,666.40 and 148,539,987.20 is: 222,513,718.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,163,212.80 : 319,319,666.40 = 148,539,987.20 : x
  2. Step 2: Convert to fraction form
    213,163,212.80/319,319,666.40 = 148,539,987.20/x
  3. Step 3: Cross multiply
    213,163,212.80x = 319,319,666.40 × 148,539,987.20
  4. Step 4: Simplify right side
    213,163,212.80x = 47,431,739,159,764,264
  5. Step 5: Solve for x
    x = 47,431,739,159,764,264/213,163,212.80
  6. Step 6: Final answer
    x = 222,513,718.65

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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.