Home / 343,553,430.30-515,330,145.45-205,803,923.10

Finding the Fourth Proportional to 343,553,430.30, 515,330,145.45 and 205,803,923.10

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Solution

The fourth proportional to 343,553,430.30, 515,330,145.45 and 205,803,923.10 is: 308,705,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,553,430.30 : 515,330,145.45 = 205,803,923.10 : x
  2. Step 2: Convert to fraction form
    343,553,430.30/515,330,145.45 = 205,803,923.10/x
  3. Step 3: Cross multiply
    343,553,430.30x = 515,330,145.45 × 205,803,923.10
  4. Step 4: Simplify right side
    343,553,430.30x = 106,056,965,625,303,616
  5. Step 5: Solve for x
    x = 106,056,965,625,303,616/343,553,430.30
  6. Step 6: Final answer
    x = 308,705,884.65

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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.