Home / 770,806,654.20-1,155,827,402.10-279,500,311.80

Finding the Fourth Proportional to 770,806,654.20, 1,155,827,402.10 and 279,500,311.80

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Solution

The fourth proportional to 770,806,654.20, 1,155,827,402.10 and 279,500,311.80 is: 419,111,741.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,806,654.20 : 1,155,827,402.10 = 279,500,311.80 : x
  2. Step 2: Convert to fraction form
    770,806,654.20/1,155,827,402.10 = 279,500,311.80/x
  3. Step 3: Cross multiply
    770,806,654.20x = 1,155,827,402.10 × 279,500,311.80
  4. Step 4: Simplify right side
    770,806,654.20x = 323,054,119,273,933,952
  5. Step 5: Solve for x
    x = 323,054,119,273,933,952/770,806,654.20
  6. Step 6: Final answer
    x = 419,111,741.59

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1.5x scale

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.