Home / 262,109,345.80-393,164,018.70-70,633,121.80

Finding the Fourth Proportional to 262,109,345.80, 393,164,018.70 and 70,633,121.80

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Solution

The fourth proportional to 262,109,345.80, 393,164,018.70 and 70,633,121.80 is: 105,949,682.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,109,345.80 : 393,164,018.70 = 70,633,121.80 : x
  2. Step 2: Convert to fraction form
    262,109,345.80/393,164,018.70 = 70,633,121.80/x
  3. Step 3: Cross multiply
    262,109,345.80x = 393,164,018.70 × 70,633,121.80
  4. Step 4: Simplify right side
    262,109,345.80x = 27,770,402,020,214,576
  5. Step 5: Solve for x
    x = 27,770,402,020,214,576/262,109,345.80
  6. Step 6: Final answer
    x = 105,949,682.70

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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.