Finding the Fourth Proportional to 980,374,697.98, 1,352,964,945.28 and 551,346,987.26
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Solution
The fourth proportional to 980,374,697.98, 1,352,964,945.28 and 551,346,987.26 is: 760,885,759.28
Step by Step Solution
- Step 1: Write the proportion equation
980,374,697.98 : 1,352,964,945.28 = 551,346,987.26 : x - Step 2: Convert to fraction form
980,374,697.98/1,352,964,945.28 = 551,346,987.26/x - Step 3: Cross multiply
980,374,697.98x = 1,352,964,945.28 × 551,346,987.26 - Step 4: Simplify right side
980,374,697.98x = 745,953,146,451,570,432 - Step 5: Solve for x
x = 745,953,146,451,570,432/980,374,697.98 - Step 6: Final answer
x = 760,885,759.28
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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.