Home / 131,052,345.60-196,578,518.40-128,501,428.80

Finding the Fourth Proportional to 131,052,345.60, 196,578,518.40 and 128,501,428.80

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Solution

The fourth proportional to 131,052,345.60, 196,578,518.40 and 128,501,428.80 is: 192,752,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,052,345.60 : 196,578,518.40 = 128,501,428.80 : x
  2. Step 2: Convert to fraction form
    131,052,345.60/196,578,518.40 = 128,501,428.80/x
  3. Step 3: Cross multiply
    131,052,345.60x = 196,578,518.40 × 128,501,428.80
  4. Step 4: Simplify right side
    131,052,345.60x = 25,260,620,485,787,092
  5. Step 5: Solve for x
    x = 25,260,620,485,787,092/131,052,345.60
  6. Step 6: Final answer
    x = 192,752,143.20

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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.