Home / 38,668,968.66-53,362,112.58-21,265,313.88

Finding the Fourth Proportional to 38,668,968.66, 53,362,112.58 and 21,265,313.88

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Solution

The fourth proportional to 38,668,968.66, 53,362,112.58 and 21,265,313.88 is: 29,345,547.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,668,968.66 : 53,362,112.58 = 21,265,313.88 : x
  2. Step 2: Convert to fraction form
    38,668,968.66/53,362,112.58 = 21,265,313.88/x
  3. Step 3: Cross multiply
    38,668,968.66x = 53,362,112.58 × 21,265,313.88
  4. Step 4: Simplify right side
    38,668,968.66x = 1,134,762,073,313,596.50
  5. Step 5: Solve for x
    x = 1,134,762,073,313,596.50/38,668,968.66
  6. Step 6: Final answer
    x = 29,345,547.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.