Home / 869,196,004.10-1,303,794,006.15-287,020,103.30

Finding the Fourth Proportional to 869,196,004.10, 1,303,794,006.15 and 287,020,103.30

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Solution

The fourth proportional to 869,196,004.10, 1,303,794,006.15 and 287,020,103.30 is: 430,530,154.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,196,004.10 : 1,303,794,006.15 = 287,020,103.30 : x
  2. Step 2: Convert to fraction form
    869,196,004.10/1,303,794,006.15 = 287,020,103.30/x
  3. Step 3: Cross multiply
    869,196,004.10x = 1,303,794,006.15 × 287,020,103.30
  4. Step 4: Simplify right side
    869,196,004.10x = 374,215,090,327,093,888
  5. Step 5: Solve for x
    x = 374,215,090,327,093,888/869,196,004.10
  6. Step 6: Final answer
    x = 430,530,154.95

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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.