Home / 689,652,005.30-1,034,603,979.15-280,749,490.10

Finding the Fourth Proportional to 689,652,005.30, 1,034,603,979.15 and 280,749,490.10

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Solution

The fourth proportional to 689,652,005.30, 1,034,603,979.15 and 280,749,490.10 is: 421,175,516.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,652,005.30 : 1,034,603,979.15 = 280,749,490.10 : x
  2. Step 2: Convert to fraction form
    689,652,005.30/1,034,603,979.15 = 280,749,490.10/x
  3. Step 3: Cross multiply
    689,652,005.30x = 1,034,603,979.15 × 280,749,490.10
  4. Step 4: Simplify right side
    689,652,005.30x = 290,464,539,601,793,536
  5. Step 5: Solve for x
    x = 290,464,539,601,793,536/689,652,005.30
  6. Step 6: Final answer
    x = 421,175,516.59

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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.