Home / 131,656,607.73-181,617,236.30-81,404,762.68

Finding the Fourth Proportional to 131,656,607.73, 181,617,236.30 and 81,404,762.68

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Solution

The fourth proportional to 131,656,607.73, 181,617,236.30 and 81,404,762.68 is: 112,295,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,656,607.73 : 181,617,236.30 = 81,404,762.68 : x
  2. Step 2: Convert to fraction form
    131,656,607.73/181,617,236.30 = 81,404,762.68/x
  3. Step 3: Cross multiply
    131,656,607.73x = 181,617,236.30 × 81,404,762.68
  4. Step 4: Simplify right side
    131,656,607.73x = 14,784,508,019,598,984
  5. Step 5: Solve for x
    x = 14,784,508,019,598,984/131,656,607.73
  6. Step 6: Final answer
    x = 112,295,981.76

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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.