Home / 1,319,933,108.80-1,981,411,317.60-774,981,697.60

Finding the Fourth Proportional to 1,319,933,108.80, 1,981,411,317.60 and 774,981,697.60

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Solution

The fourth proportional to 1,319,933,108.80, 1,981,411,317.60 and 774,981,697.60 is: 1,163,360,094.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,933,108.80 : 1,981,411,317.60 = 774,981,697.60 : x
  2. Step 2: Convert to fraction form
    1,319,933,108.80/1,981,411,317.60 = 774,981,697.60/x
  3. Step 3: Cross multiply
    1,319,933,108.80x = 1,981,411,317.60 × 774,981,697.60
  4. Step 4: Simplify right side
    1,319,933,108.80x = 1,535,557,506,557,500,672
  5. Step 5: Solve for x
    x = 1,535,557,506,557,500,672/1,319,933,108.80
  6. Step 6: Final answer
    x = 1,163,360,094.78

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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.