Home / 52,147,152,092.40-78,220,728,138.60-19,023,780,879.60

Finding the Fourth Proportional to 52,147,152,092.40, 78,220,728,138.60 and 19,023,780,879.60

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Solution

The fourth proportional to 52,147,152,092.40, 78,220,728,138.60 and 19,023,780,879.60 is: 28,535,671,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,147,152,092.40 : 78,220,728,138.60 = 19,023,780,879.60 : x
  2. Step 2: Convert to fraction form
    52,147,152,092.40/78,220,728,138.60 = 19,023,780,879.60/x
  3. Step 3: Cross multiply
    52,147,152,092.40x = 78,220,728,138.60 × 19,023,780,879.60
  4. Step 4: Simplify right side
    52,147,152,092.40x = 1,488,053,992,351,488,278,528
  5. Step 5: Solve for x
    x = 1,488,053,992,351,488,278,528/52,147,152,092.40
  6. Step 6: Final answer
    x = 28,535,671,319.40

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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.