Home / 280,496,206.14-420,744,312.86-76,024,281.39

Finding the Fourth Proportional to 280,496,206.14, 420,744,312.86 and 76,024,281.39

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Solution

The fourth proportional to 280,496,206.14, 420,744,312.86 and 76,024,281.39 is: 114,036,423.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,496,206.14 : 420,744,312.86 = 76,024,281.39 : x
  2. Step 2: Convert to fraction form
    280,496,206.14/420,744,312.86 = 76,024,281.39/x
  3. Step 3: Cross multiply
    280,496,206.14x = 420,744,312.86 × 76,024,281.39
  4. Step 4: Simplify right side
    280,496,206.14x = 31,986,784,034,110,836
  5. Step 5: Solve for x
    x = 31,986,784,034,110,836/280,496,206.14
  6. Step 6: Final answer
    x = 114,036,423.07

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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.