Home / 211,079,619.40-316,619,429.10-74,747,288.20

Finding the Fourth Proportional to 211,079,619.40, 316,619,429.10 and 74,747,288.20

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Solution

The fourth proportional to 211,079,619.40, 316,619,429.10 and 74,747,288.20 is: 112,120,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,079,619.40 : 316,619,429.10 = 74,747,288.20 : x
  2. Step 2: Convert to fraction form
    211,079,619.40/316,619,429.10 = 74,747,288.20/x
  3. Step 3: Cross multiply
    211,079,619.40x = 316,619,429.10 × 74,747,288.20
  4. Step 4: Simplify right side
    211,079,619.40x = 23,666,443,716,657,168
  5. Step 5: Solve for x
    x = 23,666,443,716,657,168/211,079,619.40
  6. Step 6: Final answer
    x = 112,120,932.30

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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.