Home / 81,186,682.11-121,807,094.58-54,000,153.15

Finding the Fourth Proportional to 81,186,682.11, 121,807,094.58 and 54,000,153.15

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Solution

The fourth proportional to 81,186,682.11, 121,807,094.58 and 54,000,153.15 is: 81,018,235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,186,682.11 : 121,807,094.58 = 54,000,153.15 : x
  2. Step 2: Convert to fraction form
    81,186,682.11/121,807,094.58 = 54,000,153.15/x
  3. Step 3: Cross multiply
    81,186,682.11x = 121,807,094.58 × 54,000,153.15
  4. Step 4: Simplify right side
    81,186,682.11x = 6,577,601,762,076,535
  5. Step 5: Solve for x
    x = 6,577,601,762,076,535/81,186,682.11
  6. Step 6: Final answer
    x = 81,018,235.89

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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.