Home / 689,652,000.30-1,034,603,971.65-280,749,485.10

Finding the Fourth Proportional to 689,652,000.30, 1,034,603,971.65 and 280,749,485.10

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Solution

The fourth proportional to 689,652,000.30, 1,034,603,971.65 and 280,749,485.10 is: 421,175,509.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,652,000.30 : 1,034,603,971.65 = 280,749,485.10 : x
  2. Step 2: Convert to fraction form
    689,652,000.30/1,034,603,971.65 = 280,749,485.10/x
  3. Step 3: Cross multiply
    689,652,000.30x = 1,034,603,971.65 × 280,749,485.10
  4. Step 4: Simplify right side
    689,652,000.30x = 290,464,532,323,152,512
  5. Step 5: Solve for x
    x = 290,464,532,323,152,512/689,652,000.30
  6. Step 6: Final answer
    x = 421,175,509.09

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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.