Home / 81,615,014.40-122,139,086.40-56,105,846.40

Finding the Fourth Proportional to 81,615,014.40, 122,139,086.40 and 56,105,846.40

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Solution

The fourth proportional to 81,615,014.40, 122,139,086.40 and 56,105,846.40 is: 83,963,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,615,014.40 : 122,139,086.40 = 56,105,846.40 : x
  2. Step 2: Convert to fraction form
    81,615,014.40/122,139,086.40 = 56,105,846.40/x
  3. Step 3: Cross multiply
    81,615,014.40x = 122,139,086.40 × 56,105,846.40
  4. Step 4: Simplify right side
    81,615,014.40x = 6,852,716,820,994,729
  5. Step 5: Solve for x
    x = 6,852,716,820,994,729/81,615,014.40
  6. Step 6: Final answer
    x = 83,963,923.44

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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.