Home / 205,216,512.39-283,199,060.30-111,130,821.86

Finding the Fourth Proportional to 205,216,512.39, 283,199,060.30 and 111,130,821.86

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Solution

The fourth proportional to 205,216,512.39, 283,199,060.30 and 111,130,821.86 is: 153,360,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,216,512.39 : 283,199,060.30 = 111,130,821.86 : x
  2. Step 2: Convert to fraction form
    205,216,512.39/283,199,060.30 = 111,130,821.86/x
  3. Step 3: Cross multiply
    205,216,512.39x = 283,199,060.30 × 111,130,821.86
  4. Step 4: Simplify right side
    205,216,512.39x = 31,472,144,319,147,052
  5. Step 5: Solve for x
    x = 31,472,144,319,147,052/205,216,512.39
  6. Step 6: Final answer
    x = 153,360,682.10

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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.