Home / 100,605,529.52-150,908,106-31,523,621.68

Finding the Fourth Proportional to 100,605,529.52, 150,908,106 and 31,523,621.68

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Solution

The fourth proportional to 100,605,529.52, 150,908,106 and 31,523,621.68 is: 47,285,373.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,605,529.52 : 150,908,106 = 31,523,621.68 : x
  2. Step 2: Convert to fraction form
    100,605,529.52/150,908,106 = 31,523,621.68/x
  3. Step 3: Cross multiply
    100,605,529.52x = 150,908,106 × 31,523,621.68
  4. Step 4: Simplify right side
    100,605,529.52x = 4,757,170,041,989,338
  5. Step 5: Solve for x
    x = 4,757,170,041,989,338/100,605,529.52
  6. Step 6: Final answer
    x = 47,285,373.52

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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.