Home / 869,196,002.60-1,303,794,003.90-287,020,101.80

Finding the Fourth Proportional to 869,196,002.60, 1,303,794,003.90 and 287,020,101.80

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Solution

The fourth proportional to 869,196,002.60, 1,303,794,003.90 and 287,020,101.80 is: 430,530,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,196,002.60 : 1,303,794,003.90 = 287,020,101.80 : x
  2. Step 2: Convert to fraction form
    869,196,002.60/1,303,794,003.90 = 287,020,101.80/x
  3. Step 3: Cross multiply
    869,196,002.60x = 1,303,794,003.90 × 287,020,101.80
  4. Step 4: Simplify right side
    869,196,002.60x = 374,215,087,725,607,616
  5. Step 5: Solve for x
    x = 374,215,087,725,607,616/869,196,002.60
  6. Step 6: Final answer
    x = 430,530,152.70

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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.