Home / 488,032,784.20-673,236,212.88-311,635,312.84

Finding the Fourth Proportional to 488,032,784.20, 673,236,212.88 and 311,635,312.84

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Solution

The fourth proportional to 488,032,784.20, 673,236,212.88 and 311,635,312.84 is: 429,897,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,032,784.20 : 673,236,212.88 = 311,635,312.84 : x
  2. Step 2: Convert to fraction form
    488,032,784.20/673,236,212.88 = 311,635,312.84/x
  3. Step 3: Cross multiply
    488,032,784.20x = 673,236,212.88 × 311,635,312.84
  4. Step 4: Simplify right side
    488,032,784.20x = 209,804,177,816,075,616
  5. Step 5: Solve for x
    x = 209,804,177,816,075,616/488,032,784.20
  6. Step 6: Final answer
    x = 429,897,713.04

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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.