Home / 213,931,287.14-320,927,400.27-66,391,594.25

Finding the Fourth Proportional to 213,931,287.14, 320,927,400.27 and 66,391,594.25

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Solution

The fourth proportional to 213,931,287.14, 320,927,400.27 and 66,391,594.25 is: 99,596,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,931,287.14 : 320,927,400.27 = 66,391,594.25 : x
  2. Step 2: Convert to fraction form
    213,931,287.14/320,927,400.27 = 66,391,594.25/x
  3. Step 3: Cross multiply
    213,931,287.14x = 320,927,400.27 × 66,391,594.25
  4. Step 4: Simplify right side
    213,931,287.14x = 21,306,881,740,828,540
  5. Step 5: Solve for x
    x = 21,306,881,740,828,540/213,931,287.14
  6. Step 6: Final answer
    x = 99,596,847.32

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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.