Home / 808,148,876.32-1,212,266,588.40-255,409,256.80

Finding the Fourth Proportional to 808,148,876.32, 1,212,266,588.40 and 255,409,256.80

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Solution

The fourth proportional to 808,148,876.32, 1,212,266,588.40 and 255,409,256.80 is: 383,127,561.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,148,876.32 : 1,212,266,588.40 = 255,409,256.80 : x
  2. Step 2: Convert to fraction form
    808,148,876.32/1,212,266,588.40 = 255,409,256.80/x
  3. Step 3: Cross multiply
    808,148,876.32x = 1,212,266,588.40 × 255,409,256.80
  4. Step 4: Simplify right side
    808,148,876.32x = 309,624,108,386,715,520
  5. Step 5: Solve for x
    x = 309,624,108,386,715,520/808,148,876.32
  6. Step 6: Final answer
    x = 383,127,561.59

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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.