Home / 315,023,117.70-472,392,958.95-120,870,005.70

Finding the Fourth Proportional to 315,023,117.70, 472,392,958.95 and 120,870,005.70

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Solution

The fourth proportional to 315,023,117.70, 472,392,958.95 and 120,870,005.70 is: 181,250,633.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,023,117.70 : 472,392,958.95 = 120,870,005.70 : x
  2. Step 2: Convert to fraction form
    315,023,117.70/472,392,958.95 = 120,870,005.70/x
  3. Step 3: Cross multiply
    315,023,117.70x = 472,392,958.95 × 120,870,005.70
  4. Step 4: Simplify right side
    315,023,117.70x = 57,098,139,640,926,368
  5. Step 5: Solve for x
    x = 57,098,139,640,926,368/315,023,117.70
  6. Step 6: Final answer
    x = 181,250,633.47

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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.