Home / 128,012,950.84-176,658,311.82-69,275,600.32

Finding the Fourth Proportional to 128,012,950.84, 176,658,311.82 and 69,275,600.32

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Solution

The fourth proportional to 128,012,950.84, 176,658,311.82 and 69,275,600.32 is: 95,600,566.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,012,950.84 : 176,658,311.82 = 69,275,600.32 : x
  2. Step 2: Convert to fraction form
    128,012,950.84/176,658,311.82 = 69,275,600.32/x
  3. Step 3: Cross multiply
    128,012,950.84x = 176,658,311.82 × 69,275,600.32
  4. Step 4: Simplify right side
    128,012,950.84x = 12,238,110,602,848,250
  5. Step 5: Solve for x
    x = 12,238,110,602,848,250/128,012,950.84
  6. Step 6: Final answer
    x = 95,600,566.37

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1.5x scale

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.