Home / 12,985,639.62-19,478,444.40-5,208,063.48

Finding the Fourth Proportional to 12,985,639.62, 19,478,444.40 and 5,208,063.48

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Solution

The fourth proportional to 12,985,639.62, 19,478,444.40 and 5,208,063.48 is: 7,812,089.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985,639.62 : 19,478,444.40 = 5,208,063.48 : x
  2. Step 2: Convert to fraction form
    12,985,639.62/19,478,444.40 = 5,208,063.48/x
  3. Step 3: Cross multiply
    12,985,639.62x = 19,478,444.40 × 5,208,063.48
  4. Step 4: Simplify right side
    12,985,639.62x = 101,444,974,926,850.52
  5. Step 5: Solve for x
    x = 101,444,974,926,850.52/12,985,639.62
  6. Step 6: Final answer
    x = 7,812,089.19

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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.