Home / 472,392,680.70-708,589,021.05-127,333,944.30

Finding the Fourth Proportional to 472,392,680.70, 708,589,021.05 and 127,333,944.30

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Solution

The fourth proportional to 472,392,680.70, 708,589,021.05 and 127,333,944.30 is: 191,000,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,680.70 : 708,589,021.05 = 127,333,944.30 : x
  2. Step 2: Convert to fraction form
    472,392,680.70/708,589,021.05 = 127,333,944.30/x
  3. Step 3: Cross multiply
    472,392,680.70x = 708,589,021.05 × 127,333,944.30
  4. Step 4: Simplify right side
    472,392,680.70x = 90,227,434,937,972,224
  5. Step 5: Solve for x
    x = 90,227,434,937,972,224/472,392,680.70
  6. Step 6: Final answer
    x = 191,000,916.45

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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.