Home / 839,782,777.34-1,259,627,082.47-257,515,424.40

Finding the Fourth Proportional to 839,782,777.34, 1,259,627,082.47 and 257,515,424.40

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Solution

The fourth proportional to 839,782,777.34, 1,259,627,082.47 and 257,515,424.40 is: 386,258,698.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,782,777.34 : 1,259,627,082.47 = 257,515,424.40 : x
  2. Step 2: Convert to fraction form
    839,782,777.34/1,259,627,082.47 = 257,515,424.40/x
  3. Step 3: Cross multiply
    839,782,777.34x = 1,259,627,082.47 × 257,515,424.40
  4. Step 4: Simplify right side
    839,782,777.34x = 324,373,402,726,708,288
  5. Step 5: Solve for x
    x = 324,373,402,726,708,288/839,782,777.34
  6. Step 6: Final answer
    x = 386,258,698.66

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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.