Home / 142,046,125.56-196,002,636.30-86,262,535.80

Finding the Fourth Proportional to 142,046,125.56, 196,002,636.30 and 86,262,535.80

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Solution

The fourth proportional to 142,046,125.56, 196,002,636.30 and 86,262,535.80 is: 119,029,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,046,125.56 : 196,002,636.30 = 86,262,535.80 : x
  2. Step 2: Convert to fraction form
    142,046,125.56/196,002,636.30 = 86,262,535.80/x
  3. Step 3: Cross multiply
    142,046,125.56x = 196,002,636.30 × 86,262,535.80
  4. Step 4: Simplify right side
    142,046,125.56x = 16,907,684,430,723,130
  5. Step 5: Solve for x
    x = 16,907,684,430,723,130/142,046,125.56
  6. Step 6: Final answer
    x = 119,029,536.10

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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.