Home / 142,046,121.06-196,002,630.09-86,262,531.30

Finding the Fourth Proportional to 142,046,121.06, 196,002,630.09 and 86,262,531.30

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Solution

The fourth proportional to 142,046,121.06, 196,002,630.09 and 86,262,531.30 is: 119,029,529.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,046,121.06 : 196,002,630.09 = 86,262,531.30 : x
  2. Step 2: Convert to fraction form
    142,046,121.06/196,002,630.09 = 86,262,531.30/x
  3. Step 3: Cross multiply
    142,046,121.06x = 196,002,630.09 × 86,262,531.30
  4. Step 4: Simplify right side
    142,046,121.06x = 16,907,683,013,020,946
  5. Step 5: Solve for x
    x = 16,907,683,013,020,946/142,046,121.06
  6. Step 6: Final answer
    x = 119,029,529.89

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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.