Home / 81,673,417.10-122,510,125.65-36,239,804.30

Finding the Fourth Proportional to 81,673,417.10, 122,510,125.65 and 36,239,804.30

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Solution

The fourth proportional to 81,673,417.10, 122,510,125.65 and 36,239,804.30 is: 54,359,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,673,417.10 : 122,510,125.65 = 36,239,804.30 : x
  2. Step 2: Convert to fraction form
    81,673,417.10/122,510,125.65 = 36,239,804.30/x
  3. Step 3: Cross multiply
    81,673,417.10x = 122,510,125.65 × 36,239,804.30
  4. Step 4: Simplify right side
    81,673,417.10x = 4,439,742,978,324,410
  5. Step 5: Solve for x
    x = 4,439,742,978,324,410/81,673,417.10
  6. Step 6: Final answer
    x = 54,359,706.45

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1.5x scale

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.