Home / 12,715,322.28-19,048,982.88-7,512,407.22

Finding the Fourth Proportional to 12,715,322.28, 19,048,982.88 and 7,512,407.22

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Solution

The fourth proportional to 12,715,322.28, 19,048,982.88 and 7,512,407.22 is: 11,254,430.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715,322.28 : 19,048,982.88 = 7,512,407.22 : x
  2. Step 2: Convert to fraction form
    12,715,322.28/19,048,982.88 = 7,512,407.22/x
  3. Step 3: Cross multiply
    12,715,322.28x = 19,048,982.88 × 7,512,407.22
  4. Step 4: Simplify right side
    12,715,322.28x = 143,103,716,521,368.38
  5. Step 5: Solve for x
    x = 143,103,716,521,368.38/12,715,322.28
  6. Step 6: Final answer
    x = 11,254,430.94

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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.