Finding the Fourth Proportional to 7,209,402.98, 9,959,781.47 and 4,734,495.36
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Solution
The fourth proportional to 7,209,402.98, 9,959,781.47 and 4,734,495.36 is: 6,540,699.60
Step by Step Solution
- Step 1: Write the proportion equation
7,209,402.98 : 9,959,781.47 = 4,734,495.36 : x - Step 2: Convert to fraction form
7,209,402.98/9,959,781.47 = 4,734,495.36/x - Step 3: Cross multiply
7,209,402.98x = 9,959,781.47 × 4,734,495.36 - Step 4: Simplify right side
7,209,402.98x = 47,154,539,132,656.51 - Step 5: Solve for x
x = 47,154,539,132,656.51/7,209,402.98 - Step 6: Final answer
x = 6,540,699.60
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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.