Home / 782,345,383.60-1,079,401,186.56-468,965,254.72

Finding the Fourth Proportional to 782,345,383.60, 1,079,401,186.56 and 468,965,254.72

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Solution

The fourth proportional to 782,345,383.60, 1,079,401,186.56 and 468,965,254.72 is: 647,030,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,345,383.60 : 1,079,401,186.56 = 468,965,254.72 : x
  2. Step 2: Convert to fraction form
    782,345,383.60/1,079,401,186.56 = 468,965,254.72/x
  3. Step 3: Cross multiply
    782,345,383.60x = 1,079,401,186.56 × 468,965,254.72
  4. Step 4: Simplify right side
    782,345,383.60x = 506,201,652,400,180,672
  5. Step 5: Solve for x
    x = 506,201,652,400,180,672/782,345,383.60
  6. Step 6: Final answer
    x = 647,030,918.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.