Home / 86,936,999.80-130,405,499.70-61,427,831.80

Finding the Fourth Proportional to 86,936,999.80, 130,405,499.70 and 61,427,831.80

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Solution

The fourth proportional to 86,936,999.80, 130,405,499.70 and 61,427,831.80 is: 92,141,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,936,999.80 : 130,405,499.70 = 61,427,831.80 : x
  2. Step 2: Convert to fraction form
    86,936,999.80/130,405,499.70 = 61,427,831.80/x
  3. Step 3: Cross multiply
    86,936,999.80x = 130,405,499.70 × 61,427,831.80
  4. Step 4: Simplify right side
    86,936,999.80x = 8,010,527,101,366,550
  5. Step 5: Solve for x
    x = 8,010,527,101,366,550/86,936,999.80
  6. Step 6: Final answer
    x = 92,141,747.70

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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.