Home / 69,235,230.88-103,849,958.80-18,116,117.92

Finding the Fourth Proportional to 69,235,230.88, 103,849,958.80 and 18,116,117.92

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Solution

The fourth proportional to 69,235,230.88, 103,849,958.80 and 18,116,117.92 is: 27,173,421.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,235,230.88 : 103,849,958.80 = 18,116,117.92 : x
  2. Step 2: Convert to fraction form
    69,235,230.88/103,849,958.80 = 18,116,117.92/x
  3. Step 3: Cross multiply
    69,235,230.88x = 103,849,958.80 × 18,116,117.92
  4. Step 4: Simplify right side
    69,235,230.88x = 1,881,358,099,607,941.75
  5. Step 5: Solve for x
    x = 1,881,358,099,607,941.75/69,235,230.88
  6. Step 6: Final answer
    x = 27,173,421.33

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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.