Home / 388,906,613,202.86-536,697,480,189.98-212,920,143,205.36

Finding the Fourth Proportional to 388,906,613,202.86, 536,697,480,189.98 and 212,920,143,205.36

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Solution

The fourth proportional to 388,906,613,202.86, 536,697,480,189.98 and 212,920,143,205.36 is: 293,833,276,320.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,906,613,202.86 : 536,697,480,189.98 = 212,920,143,205.36 : x
  2. Step 2: Convert to fraction form
    388,906,613,202.86/536,697,480,189.98 = 212,920,143,205.36/x
  3. Step 3: Cross multiply
    388,906,613,202.86x = 536,697,480,189.98 × 212,920,143,205.36
  4. Step 4: Simplify right side
    388,906,613,202.86x = 114,273,704,340,006,392,299,520
  5. Step 5: Solve for x
    x = 114,273,704,340,006,392,299,520/388,906,613,202.86
  6. Step 6: Final answer
    x = 293,833,276,320.24

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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.