Home / 215,622,005.10-323,433,007.65-100,830,749.10

Finding the Fourth Proportional to 215,622,005.10, 323,433,007.65 and 100,830,749.10

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Solution

The fourth proportional to 215,622,005.10, 323,433,007.65 and 100,830,749.10 is: 151,246,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,622,005.10 : 323,433,007.65 = 100,830,749.10 : x
  2. Step 2: Convert to fraction form
    215,622,005.10/323,433,007.65 = 100,830,749.10/x
  3. Step 3: Cross multiply
    215,622,005.10x = 323,433,007.65 × 100,830,749.10
  4. Step 4: Simplify right side
    215,622,005.10x = 32,611,992,445,015,528
  5. Step 5: Solve for x
    x = 32,611,992,445,015,528/215,622,005.10
  6. Step 6: Final answer
    x = 151,246,123.65

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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.