Home / 3,216,211,013.88-4,438,478,852.42-1,787,342,341.91

Finding the Fourth Proportional to 3,216,211,013.88, 4,438,478,852.42 and 1,787,342,341.91

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Solution

The fourth proportional to 3,216,211,013.88, 4,438,478,852.42 and 1,787,342,341.91 is: 2,466,592,257.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216,211,013.88 : 4,438,478,852.42 = 1,787,342,341.91 : x
  2. Step 2: Convert to fraction form
    3,216,211,013.88/4,438,478,852.42 = 1,787,342,341.91/x
  3. Step 3: Cross multiply
    3,216,211,013.88x = 4,438,478,852.42 × 1,787,342,341.91
  4. Step 4: Simplify right side
    3,216,211,013.88x = 7,933,081,186,571,242,496
  5. Step 5: Solve for x
    x = 7,933,081,186,571,242,496/3,216,211,013.88
  6. Step 6: Final answer
    x = 2,466,592,257.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.