Home / 262,109,347.80-393,164,021.70-70,633,123.80

Finding the Fourth Proportional to 262,109,347.80, 393,164,021.70 and 70,633,123.80

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Solution

The fourth proportional to 262,109,347.80, 393,164,021.70 and 70,633,123.80 is: 105,949,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,109,347.80 : 393,164,021.70 = 70,633,123.80 : x
  2. Step 2: Convert to fraction form
    262,109,347.80/393,164,021.70 = 70,633,123.80/x
  3. Step 3: Cross multiply
    262,109,347.80x = 393,164,021.70 × 70,633,123.80
  4. Step 4: Simplify right side
    262,109,347.80x = 27,770,403,018,441,984
  5. Step 5: Solve for x
    x = 27,770,403,018,441,984/262,109,347.80
  6. Step 6: Final answer
    x = 105,949,685.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.