Home / 1,771,391,315.20-2,657,086,972.80-680,909,958.40

Finding the Fourth Proportional to 1,771,391,315.20, 2,657,086,972.80 and 680,909,958.40

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Solution

The fourth proportional to 1,771,391,315.20, 2,657,086,972.80 and 680,909,958.40 is: 1,021,364,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771,391,315.20 : 2,657,086,972.80 = 680,909,958.40 : x
  2. Step 2: Convert to fraction form
    1,771,391,315.20/2,657,086,972.80 = 680,909,958.40/x
  3. Step 3: Cross multiply
    1,771,391,315.20x = 2,657,086,972.80 × 680,909,958.40
  4. Step 4: Simplify right side
    1,771,391,315.20x = 1,809,236,980,114,429,952
  5. Step 5: Solve for x
    x = 1,809,236,980,114,429,952/1,771,391,315.20
  6. Step 6: Final answer
    x = 1,021,364,937.60

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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.