Home / 762,588,122.70-1,144,323,503.31-319,891,155.93

Finding the Fourth Proportional to 762,588,122.70, 1,144,323,503.31 and 319,891,155.93

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Solution

The fourth proportional to 762,588,122.70, 1,144,323,503.31 and 319,891,155.93 is: 480,021,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,588,122.70 : 1,144,323,503.31 = 319,891,155.93 : x
  2. Step 2: Convert to fraction form
    762,588,122.70/1,144,323,503.31 = 319,891,155.93/x
  3. Step 3: Cross multiply
    762,588,122.70x = 1,144,323,503.31 × 319,891,155.93
  4. Step 4: Simplify right side
    762,588,122.70x = 366,058,968,231,703,040
  5. Step 5: Solve for x
    x = 366,058,968,231,703,040/762,588,122.70
  6. Step 6: Final answer
    x = 480,021,858.90

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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.