Home / 142,540,814.16-196,706,323.32-77,350,718.16

Finding the Fourth Proportional to 142,540,814.16, 196,706,323.32 and 77,350,718.16

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Solution

The fourth proportional to 142,540,814.16, 196,706,323.32 and 77,350,718.16 is: 106,743,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,540,814.16 : 196,706,323.32 = 77,350,718.16 : x
  2. Step 2: Convert to fraction form
    142,540,814.16/196,706,323.32 = 77,350,718.16/x
  3. Step 3: Cross multiply
    142,540,814.16x = 196,706,323.32 × 77,350,718.16
  4. Step 4: Simplify right side
    142,540,814.16x = 15,215,375,375,415,154
  5. Step 5: Solve for x
    x = 15,215,375,375,415,154/142,540,814.16
  6. Step 6: Final answer
    x = 106,743,990.94

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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.