Home / 260,090,814.45-390,222,947.99-172,995,689.25

Finding the Fourth Proportional to 260,090,814.45, 390,222,947.99 and 172,995,689.25

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Solution

The fourth proportional to 260,090,814.45, 390,222,947.99 and 172,995,689.25 is: 259,551,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,090,814.45 : 390,222,947.99 = 172,995,689.25 : x
  2. Step 2: Convert to fraction form
    260,090,814.45/390,222,947.99 = 172,995,689.25/x
  3. Step 3: Cross multiply
    260,090,814.45x = 390,222,947.99 × 172,995,689.25
  4. Step 4: Simplify right side
    260,090,814.45x = 67,506,887,847,831,976
  5. Step 5: Solve for x
    x = 67,506,887,847,831,976/260,090,814.45
  6. Step 6: Final answer
    x = 259,551,218.64

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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.