Home / 1,272,505,654.15-1,908,739,273.89-572,503,471.39

Finding the Fourth Proportional to 1,272,505,654.15, 1,908,739,273.89 and 572,503,471.39

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Solution

The fourth proportional to 1,272,505,654.15, 1,908,739,273.89 and 572,503,471.39 is: 858,746,565.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,505,654.15 : 1,908,739,273.89 = 572,503,471.39 : x
  2. Step 2: Convert to fraction form
    1,272,505,654.15/1,908,739,273.89 = 572,503,471.39/x
  3. Step 3: Cross multiply
    1,272,505,654.15x = 1,908,739,273.89 × 572,503,471.39
  4. Step 4: Simplify right side
    1,272,505,654.15x = 1,092,759,860,285,014,528
  5. Step 5: Solve for x
    x = 1,092,759,860,285,014,528/1,272,505,654.15
  6. Step 6: Final answer
    x = 858,746,565.66

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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.