Home / 156,244,277.46-215,518,284.21-100,393,709.07

Finding the Fourth Proportional to 156,244,277.46, 215,518,284.21 and 100,393,709.07

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Solution

The fourth proportional to 156,244,277.46, 215,518,284.21 and 100,393,709.07 is: 138,479,823.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,244,277.46 : 215,518,284.21 = 100,393,709.07 : x
  2. Step 2: Convert to fraction form
    156,244,277.46/215,518,284.21 = 100,393,709.07/x
  3. Step 3: Cross multiply
    156,244,277.46x = 215,518,284.21 × 100,393,709.07
  4. Step 4: Simplify right side
    156,244,277.46x = 21,636,679,924,244,316
  5. Step 5: Solve for x
    x = 21,636,679,924,244,316/156,244,277.46
  6. Step 6: Final answer
    x = 138,479,823.24

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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.