Home / 21,133,043.70-31,699,565.55-7,668,122.10

Finding the Fourth Proportional to 21,133,043.70, 31,699,565.55 and 7,668,122.10

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Solution

The fourth proportional to 21,133,043.70, 31,699,565.55 and 7,668,122.10 is: 11,502,183.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133,043.70 : 31,699,565.55 = 7,668,122.10 : x
  2. Step 2: Convert to fraction form
    21,133,043.70/31,699,565.55 = 7,668,122.10/x
  3. Step 3: Cross multiply
    21,133,043.70x = 31,699,565.55 × 7,668,122.10
  4. Step 4: Simplify right side
    21,133,043.70x = 243,076,139,154,353.66
  5. Step 5: Solve for x
    x = 243,076,139,154,353.66/21,133,043.70
  6. Step 6: Final answer
    x = 11,502,183.15

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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.