Home / 1,485,997,233.86-2,050,677,502.30-816,953,661.78

Finding the Fourth Proportional to 1,485,997,233.86, 2,050,677,502.30 and 816,953,661.78

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Solution

The fourth proportional to 1,485,997,233.86, 2,050,677,502.30 and 816,953,661.78 is: 1,127,396,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,997,233.86 : 2,050,677,502.30 = 816,953,661.78 : x
  2. Step 2: Convert to fraction form
    1,485,997,233.86/2,050,677,502.30 = 816,953,661.78/x
  3. Step 3: Cross multiply
    1,485,997,233.86x = 2,050,677,502.30 × 816,953,661.78
  4. Step 4: Simplify right side
    1,485,997,233.86x = 1,675,308,494,627,139,584
  5. Step 5: Solve for x
    x = 1,675,308,494,627,139,584/1,485,997,233.86
  6. Step 6: Final answer
    x = 1,127,396,778.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.