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Finding the Fourth Proportional to 989,379,788.80, 1,483,868,129.27 and 375,748,879.36

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Solution

The fourth proportional to 989,379,788.80, 1,483,868,129.27 and 375,748,879.36 is: 563,546,772.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,379,788.80 : 1,483,868,129.27 = 375,748,879.36 : x
  2. Step 2: Convert to fraction form
    989,379,788.80/1,483,868,129.27 = 375,748,879.36/x
  3. Step 3: Cross multiply
    989,379,788.80x = 1,483,868,129.27 × 375,748,879.36
  4. Step 4: Simplify right side
    989,379,788.80x = 557,561,786,683,802,816
  5. Step 5: Solve for x
    x = 557,561,786,683,802,816/989,379,788.80
  6. Step 6: Final answer
    x = 563,546,772.43

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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.