Home / 689,905,019.90-1,034,857,529.85-553,856,123.90

Finding the Fourth Proportional to 689,905,019.90, 1,034,857,529.85 and 553,856,123.90

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Solution

The fourth proportional to 689,905,019.90, 1,034,857,529.85 and 553,856,123.90 is: 830,784,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,905,019.90 : 1,034,857,529.85 = 553,856,123.90 : x
  2. Step 2: Convert to fraction form
    689,905,019.90/1,034,857,529.85 = 553,856,123.90/x
  3. Step 3: Cross multiply
    689,905,019.90x = 1,034,857,529.85 × 553,856,123.90
  4. Step 4: Simplify right side
    689,905,019.90x = 573,162,180,271,449,536
  5. Step 5: Solve for x
    x = 573,162,180,271,449,536/689,905,019.90
  6. Step 6: Final answer
    x = 830,784,185.85

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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.