Home / 727,579,826.60-1,091,529,172.20-359,291,213.60

Finding the Fourth Proportional to 727,579,826.60, 1,091,529,172.20 and 359,291,213.60

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Solution

The fourth proportional to 727,579,826.60, 1,091,529,172.20 and 359,291,213.60 is: 539,015,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,579,826.60 : 1,091,529,172.20 = 359,291,213.60 : x
  2. Step 2: Convert to fraction form
    727,579,826.60/1,091,529,172.20 = 359,291,213.60/x
  3. Step 3: Cross multiply
    727,579,826.60x = 1,091,529,172.20 × 359,291,213.60
  4. Step 4: Simplify right side
    727,579,826.60x = 392,176,840,959,541,440
  5. Step 5: Solve for x
    x = 392,176,840,959,541,440/727,579,826.60
  6. Step 6: Final answer
    x = 539,015,550.76

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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.