Home / 283,640,140.45-391,423,410.17-153,259,948.45

Finding the Fourth Proportional to 283,640,140.45, 391,423,410.17 and 153,259,948.45

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Solution

The fourth proportional to 283,640,140.45, 391,423,410.17 and 153,259,948.45 is: 211,498,737.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,640,140.45 : 391,423,410.17 = 153,259,948.45 : x
  2. Step 2: Convert to fraction form
    283,640,140.45/391,423,410.17 = 153,259,948.45/x
  3. Step 3: Cross multiply
    283,640,140.45x = 391,423,410.17 × 153,259,948.45
  4. Step 4: Simplify right side
    283,640,140.45x = 59,989,531,662,053,992
  5. Step 5: Solve for x
    x = 59,989,531,662,053,992/283,640,140.45
  6. Step 6: Final answer
    x = 211,498,737.69

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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.