Home / 97,031,696.81-145,105,464.96-72,456,880.82

Finding the Fourth Proportional to 97,031,696.81, 145,105,464.96 and 72,456,880.82

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Solution

The fourth proportional to 97,031,696.81, 145,105,464.96 and 72,456,880.82 is: 108,355,204.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,031,696.81 : 145,105,464.96 = 72,456,880.82 : x
  2. Step 2: Convert to fraction form
    97,031,696.81/145,105,464.96 = 72,456,880.82/x
  3. Step 3: Cross multiply
    97,031,696.81x = 145,105,464.96 × 72,456,880.82
  4. Step 4: Simplify right side
    97,031,696.81x = 10,513,889,380,211,880
  5. Step 5: Solve for x
    x = 10,513,889,380,211,880/97,031,696.81
  6. Step 6: Final answer
    x = 108,355,204.81

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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.