Home / 664,852,337.20-997,278,505.80-389,353,322.80

Finding the Fourth Proportional to 664,852,337.20, 997,278,505.80 and 389,353,322.80

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Solution

The fourth proportional to 664,852,337.20, 997,278,505.80 and 389,353,322.80 is: 584,029,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,852,337.20 : 997,278,505.80 = 389,353,322.80 : x
  2. Step 2: Convert to fraction form
    664,852,337.20/997,278,505.80 = 389,353,322.80/x
  3. Step 3: Cross multiply
    664,852,337.20x = 997,278,505.80 × 389,353,322.80
  4. Step 4: Simplify right side
    664,852,337.20x = 388,293,699,990,249,088
  5. Step 5: Solve for x
    x = 388,293,699,990,249,088/664,852,337.20
  6. Step 6: Final answer
    x = 584,029,984.20

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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.