Home / 116,855,785.50-161,265,732.21-64,643,920.98

Finding the Fourth Proportional to 116,855,785.50, 161,265,732.21 and 64,643,920.98

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Solution

The fourth proportional to 116,855,785.50, 161,265,732.21 and 64,643,920.98 is: 89,211,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,855,785.50 : 161,265,732.21 = 64,643,920.98 : x
  2. Step 2: Convert to fraction form
    116,855,785.50/161,265,732.21 = 64,643,920.98/x
  3. Step 3: Cross multiply
    116,855,785.50x = 161,265,732.21 × 64,643,920.98
  4. Step 4: Simplify right side
    116,855,785.50x = 10,424,849,249,765,080
  5. Step 5: Solve for x
    x = 10,424,849,249,765,080/116,855,785.50
  6. Step 6: Final answer
    x = 89,211,237.64

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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.