Home / 824,995,204.17-1,238,037,990.32-388,420,740.17

Finding the Fourth Proportional to 824,995,204.17, 1,238,037,990.32 and 388,420,740.17

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Solution

The fourth proportional to 824,995,204.17, 1,238,037,990.32 and 388,420,740.17 is: 582,887,791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,995,204.17 : 1,238,037,990.32 = 388,420,740.17 : x
  2. Step 2: Convert to fraction form
    824,995,204.17/1,238,037,990.32 = 388,420,740.17/x
  3. Step 3: Cross multiply
    824,995,204.17x = 1,238,037,990.32 × 388,420,740.17
  4. Step 4: Simplify right side
    824,995,204.17x = 480,879,632,558,673,664
  5. Step 5: Solve for x
    x = 480,879,632,558,673,664/824,995,204.17
  6. Step 6: Final answer
    x = 582,887,791.50

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1.5x scale

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.