Home / 215,622,021.60-323,433,032.40-100,830,765.60

Finding the Fourth Proportional to 215,622,021.60, 323,433,032.40 and 100,830,765.60

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Solution

The fourth proportional to 215,622,021.60, 323,433,032.40 and 100,830,765.60 is: 151,246,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,622,021.60 : 323,433,032.40 = 100,830,765.60 : x
  2. Step 2: Convert to fraction form
    215,622,021.60/323,433,032.40 = 100,830,765.60/x
  3. Step 3: Cross multiply
    215,622,021.60x = 323,433,032.40 × 100,830,765.60
  4. Step 4: Simplify right side
    215,622,021.60x = 32,612,000,277,221,600
  5. Step 5: Solve for x
    x = 32,612,000,277,221,600/215,622,021.60
  6. Step 6: Final answer
    x = 151,246,148.40

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1.5x scale

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.