Home / 18,028,765.71-24,879,718.54-9,768,821.59

Finding the Fourth Proportional to 18,028,765.71, 24,879,718.54 and 9,768,821.59

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Solution

The fourth proportional to 18,028,765.71, 24,879,718.54 and 9,768,821.59 is: 13,480,985.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028,765.71 : 24,879,718.54 = 9,768,821.59 : x
  2. Step 2: Convert to fraction form
    18,028,765.71/24,879,718.54 = 9,768,821.59/x
  3. Step 3: Cross multiply
    18,028,765.71x = 24,879,718.54 × 9,768,821.59
  4. Step 4: Simplify right side
    18,028,765.71x = 243,045,531,502,276.69
  5. Step 5: Solve for x
    x = 243,045,531,502,276.69/18,028,765.71
  6. Step 6: Final answer
    x = 13,480,985.63

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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.