Home / 513,867,176.80-770,545,712.40-186,329,615.20

Finding the Fourth Proportional to 513,867,176.80, 770,545,712.40 and 186,329,615.20

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Solution

The fourth proportional to 513,867,176.80, 770,545,712.40 and 186,329,615.20 is: 279,401,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,867,176.80 : 770,545,712.40 = 186,329,615.20 : x
  2. Step 2: Convert to fraction form
    513,867,176.80/770,545,712.40 = 186,329,615.20/x
  3. Step 3: Cross multiply
    513,867,176.80x = 770,545,712.40 × 186,329,615.20
  4. Step 4: Simplify right side
    513,867,176.80x = 143,575,486,085,501,856
  5. Step 5: Solve for x
    x = 143,575,486,085,501,856/513,867,176.80
  6. Step 6: Final answer
    x = 279,401,939.97

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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.