Home / 257,340,018.80-386,066,015.40-84,787,468.40

Finding the Fourth Proportional to 257,340,018.80, 386,066,015.40 and 84,787,468.40

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Solution

The fourth proportional to 257,340,018.80, 386,066,015.40 and 84,787,468.40 is: 127,199,649.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,340,018.80 : 386,066,015.40 = 84,787,468.40 : x
  2. Step 2: Convert to fraction form
    257,340,018.80/386,066,015.40 = 84,787,468.40/x
  3. Step 3: Cross multiply
    257,340,018.80x = 386,066,015.40 × 84,787,468.40
  4. Step 4: Simplify right side
    257,340,018.80x = 32,733,560,081,041,412
  5. Step 5: Solve for x
    x = 32,733,560,081,041,412/257,340,018.80
  6. Step 6: Final answer
    x = 127,199,649.06

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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.