Home / 213,020,113.20-319,530,169.80-83,561,085.60

Finding the Fourth Proportional to 213,020,113.20, 319,530,169.80 and 83,561,085.60

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Solution

The fourth proportional to 213,020,113.20, 319,530,169.80 and 83,561,085.60 is: 125,341,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,020,113.20 : 319,530,169.80 = 83,561,085.60 : x
  2. Step 2: Convert to fraction form
    213,020,113.20/319,530,169.80 = 83,561,085.60/x
  3. Step 3: Cross multiply
    213,020,113.20x = 319,530,169.80 × 83,561,085.60
  4. Step 4: Simplify right side
    213,020,113.20x = 26,700,287,870,440,332
  5. Step 5: Solve for x
    x = 26,700,287,870,440,332/213,020,113.20
  6. Step 6: Final answer
    x = 125,341,628.40

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1.5x scale

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.