Home / 1,257,344,541.42-1,735,227,173.82-728,844,968.94

Finding the Fourth Proportional to 1,257,344,541.42, 1,735,227,173.82 and 728,844,968.94

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Solution

The fourth proportional to 1,257,344,541.42, 1,735,227,173.82 and 728,844,968.94 is: 1,005,859,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,344,541.42 : 1,735,227,173.82 = 728,844,968.94 : x
  2. Step 2: Convert to fraction form
    1,257,344,541.42/1,735,227,173.82 = 728,844,968.94/x
  3. Step 3: Cross multiply
    1,257,344,541.42x = 1,735,227,173.82 × 728,844,968.94
  4. Step 4: Simplify right side
    1,257,344,541.42x = 1,264,711,595,606,681,856
  5. Step 5: Solve for x
    x = 1,264,711,595,606,681,856/1,257,344,541.42
  6. Step 6: Final answer
    x = 1,005,859,216.74

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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.