Home / 13,141,520-19,720,144.32-5,670,416

Finding the Fourth Proportional to 13,141,520, 19,720,144.32 and 5,670,416

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Solution

The fourth proportional to 13,141,520, 19,720,144.32 and 5,670,416 is: 8,509,017.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141,520 : 19,720,144.32 = 5,670,416 : x
  2. Step 2: Convert to fraction form
    13,141,520/19,720,144.32 = 5,670,416/x
  3. Step 3: Cross multiply
    13,141,520x = 19,720,144.32 × 5,670,416
  4. Step 4: Simplify right side
    13,141,520x = 111,821,421,874,437.12
  5. Step 5: Solve for x
    x = 111,821,421,874,437.12/13,141,520
  6. Step 6: Final answer
    x = 8,509,017.36

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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.