Home / 388,906,613,237.88-536,697,480,238.29-212,920,143,240.24

Finding the Fourth Proportional to 388,906,613,237.88, 536,697,480,238.29 and 212,920,143,240.24

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Solution

The fourth proportional to 388,906,613,237.88, 536,697,480,238.29 and 212,920,143,240.24 is: 293,833,276,368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,906,613,237.88 : 536,697,480,238.29 = 212,920,143,240.24 : x
  2. Step 2: Convert to fraction form
    388,906,613,237.88/536,697,480,238.29 = 212,920,143,240.24/x
  3. Step 3: Cross multiply
    388,906,613,237.88x = 536,697,480,238.29 × 212,920,143,240.24
  4. Step 4: Simplify right side
    388,906,613,237.88x = 114,273,704,369,012,571,373,568
  5. Step 5: Solve for x
    x = 114,273,704,369,012,571,373,568/388,906,613,237.88
  6. Step 6: Final answer
    x = 293,833,276,368.37

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1.5x scale

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.