Home / 315,023,015.70-472,392,805.95-120,869,903.70

Finding the Fourth Proportional to 315,023,015.70, 472,392,805.95 and 120,869,903.70

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Solution

The fourth proportional to 315,023,015.70, 472,392,805.95 and 120,869,903.70 is: 181,250,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,023,015.70 : 472,392,805.95 = 120,869,903.70 : x
  2. Step 2: Convert to fraction form
    315,023,015.70/472,392,805.95 = 120,869,903.70/x
  3. Step 3: Cross multiply
    315,023,015.70x = 472,392,805.95 × 120,869,903.70
  4. Step 4: Simplify right side
    315,023,015.70x = 57,098,072,963,749,288
  5. Step 5: Solve for x
    x = 57,098,072,963,749,288/315,023,015.70
  6. Step 6: Final answer
    x = 181,250,480.50

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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.