Home / 383,948,976.02-529,864,624.95-216,691,079.72

Finding the Fourth Proportional to 383,948,976.02, 529,864,624.95 and 216,691,079.72

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Solution

The fourth proportional to 383,948,976.02, 529,864,624.95 and 216,691,079.72 is: 299,042,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,948,976.02 : 529,864,624.95 = 216,691,079.72 : x
  2. Step 2: Convert to fraction form
    383,948,976.02/529,864,624.95 = 216,691,079.72/x
  3. Step 3: Cross multiply
    383,948,976.02x = 529,864,624.95 × 216,691,079.72
  4. Step 4: Simplify right side
    383,948,976.02x = 114,816,937,685,848,352
  5. Step 5: Solve for x
    x = 114,816,937,685,848,352/383,948,976.02
  6. Step 6: Final answer
    x = 299,042,177.10

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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.