Home / 100,953,454.30-151,430,181.45-72,288,007.90

Finding the Fourth Proportional to 100,953,454.30, 151,430,181.45 and 72,288,007.90

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Solution

The fourth proportional to 100,953,454.30, 151,430,181.45 and 72,288,007.90 is: 108,432,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,953,454.30 : 151,430,181.45 = 72,288,007.90 : x
  2. Step 2: Convert to fraction form
    100,953,454.30/151,430,181.45 = 72,288,007.90/x
  3. Step 3: Cross multiply
    100,953,454.30x = 151,430,181.45 × 72,288,007.90
  4. Step 4: Simplify right side
    100,953,454.30x = 10,946,586,152,956,034
  5. Step 5: Solve for x
    x = 10,946,586,152,956,034/100,953,454.30
  6. Step 6: Final answer
    x = 108,432,011.85

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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.