Home / 921,345,543-1,271,465,309.43-524,862,656.37

Finding the Fourth Proportional to 921,345,543, 1,271,465,309.43 and 524,862,656.37

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Solution

The fourth proportional to 921,345,543, 1,271,465,309.43 and 524,862,656.37 is: 724,315,285.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,345,543 : 1,271,465,309.43 = 524,862,656.37 : x
  2. Step 2: Convert to fraction form
    921,345,543/1,271,465,309.43 = 524,862,656.37/x
  3. Step 3: Cross multiply
    921,345,543x = 1,271,465,309.43 × 524,862,656.37
  4. Step 4: Simplify right side
    921,345,543x = 667,344,659,789,733,888
  5. Step 5: Solve for x
    x = 667,344,659,789,733,888/921,345,543
  6. Step 6: Final answer
    x = 724,315,285.25

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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.