Home / 15,332,767.34-21,158,848.22-8,457,101.78

Finding the Fourth Proportional to 15,332,767.34, 21,158,848.22 and 8,457,101.78

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Solution

The fourth proportional to 15,332,767.34, 21,158,848.22 and 8,457,101.78 is: 11,670,595.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332,767.34 : 21,158,848.22 = 8,457,101.78 : x
  2. Step 2: Convert to fraction form
    15,332,767.34/21,158,848.22 = 8,457,101.78/x
  3. Step 3: Cross multiply
    15,332,767.34x = 21,158,848.22 × 8,457,101.78
  4. Step 4: Simplify right side
    15,332,767.34x = 178,942,532,944,111.81
  5. Step 5: Solve for x
    x = 178,942,532,944,111.81/15,332,767.34
  6. Step 6: Final answer
    x = 11,670,595.98

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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.