Home / 391,286,377.20-585,536,106.60-340,723,714.80

Finding the Fourth Proportional to 391,286,377.20, 585,536,106.60 and 340,723,714.80

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Solution

The fourth proportional to 391,286,377.20, 585,536,106.60 and 340,723,714.80 is: 509,872,178.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,286,377.20 : 585,536,106.60 = 340,723,714.80 : x
  2. Step 2: Convert to fraction form
    391,286,377.20/585,536,106.60 = 340,723,714.80/x
  3. Step 3: Cross multiply
    391,286,377.20x = 585,536,106.60 × 340,723,714.80
  4. Step 4: Simplify right side
    391,286,377.20x = 199,506,037,390,280,800
  5. Step 5: Solve for x
    x = 199,506,037,390,280,800/391,286,377.20
  6. Step 6: Final answer
    x = 509,872,178.07

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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.