Home / 118,085,488.60-177,128,232.90-72,499,466.20

Finding the Fourth Proportional to 118,085,488.60, 177,128,232.90 and 72,499,466.20

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Solution

The fourth proportional to 118,085,488.60, 177,128,232.90 and 72,499,466.20 is: 108,749,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,085,488.60 : 177,128,232.90 = 72,499,466.20 : x
  2. Step 2: Convert to fraction form
    118,085,488.60/177,128,232.90 = 72,499,466.20/x
  3. Step 3: Cross multiply
    118,085,488.60x = 177,128,232.90 × 72,499,466.20
  4. Step 4: Simplify right side
    118,085,488.60x = 12,841,702,334,199,278
  5. Step 5: Solve for x
    x = 12,841,702,334,199,278/118,085,488.60
  6. Step 6: Final answer
    x = 108,749,199.30

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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.