Home / 314,929,139.70-472,393,709.55-84,921,474.90

Finding the Fourth Proportional to 314,929,139.70, 472,393,709.55 and 84,921,474.90

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Solution

The fourth proportional to 314,929,139.70, 472,393,709.55 and 84,921,474.90 is: 127,382,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,139.70 : 472,393,709.55 = 84,921,474.90 : x
  2. Step 2: Convert to fraction form
    314,929,139.70/472,393,709.55 = 84,921,474.90/x
  3. Step 3: Cross multiply
    314,929,139.70x = 472,393,709.55 × 84,921,474.90
  4. Step 4: Simplify right side
    314,929,139.70x = 40,116,370,548,468,216
  5. Step 5: Solve for x
    x = 40,116,370,548,468,216/314,929,139.70
  6. Step 6: Final answer
    x = 127,382,212.35

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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.