Home / 205,658,131.78-283,808,771.95-111,572,278.71

Finding the Fourth Proportional to 205,658,131.78, 283,808,771.95 and 111,572,278.71

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Solution

The fourth proportional to 205,658,131.78, 283,808,771.95 and 111,572,278.71 is: 153,970,043.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,658,131.78 : 283,808,771.95 = 111,572,278.71 : x
  2. Step 2: Convert to fraction form
    205,658,131.78/283,808,771.95 = 111,572,278.71/x
  3. Step 3: Cross multiply
    205,658,131.78x = 283,808,771.95 × 111,572,278.71
  4. Step 4: Simplify right side
    205,658,131.78x = 31,665,191,405,197,220
  5. Step 5: Solve for x
    x = 31,665,191,405,197,220/205,658,131.78
  6. Step 6: Final answer
    x = 153,970,043.06

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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.