Home / 400,353,326.78-600,620,544.28-216,116,848.69

Finding the Fourth Proportional to 400,353,326.78, 600,620,544.28 and 216,116,848.69

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Solution

The fourth proportional to 400,353,326.78, 600,620,544.28 and 216,116,848.69 is: 324,224,155.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,353,326.78 : 600,620,544.28 = 216,116,848.69 : x
  2. Step 2: Convert to fraction form
    400,353,326.78/600,620,544.28 = 216,116,848.69/x
  3. Step 3: Cross multiply
    400,353,326.78x = 600,620,544.28 × 216,116,848.69
  4. Step 4: Simplify right side
    400,353,326.78x = 129,804,219,287,034,800
  5. Step 5: Solve for x
    x = 129,804,219,287,034,800/400,353,326.78
  6. Step 6: Final answer
    x = 324,224,155.53

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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.