Home / 347,756,965.20-521,635,447.80-245,720,293.20

Finding the Fourth Proportional to 347,756,965.20, 521,635,447.80 and 245,720,293.20

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Solution

The fourth proportional to 347,756,965.20, 521,635,447.80 and 245,720,293.20 is: 368,580,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,756,965.20 : 521,635,447.80 = 245,720,293.20 : x
  2. Step 2: Convert to fraction form
    347,756,965.20/521,635,447.80 = 245,720,293.20/x
  3. Step 3: Cross multiply
    347,756,965.20x = 521,635,447.80 × 245,720,293.20
  4. Step 4: Simplify right side
    347,756,965.20x = 128,176,415,176,929,296
  5. Step 5: Solve for x
    x = 128,176,415,176,929,296/347,756,965.20
  6. Step 6: Final answer
    x = 368,580,439.80

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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.