Finding the Fourth Proportional to 70,985,714.07, 97,960,350.74 and 38,390,666.07
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Solution
The fourth proportional to 70,985,714.07, 97,960,350.74 and 38,390,666.07 is: 52,979,154.50
Step by Step Solution
- Step 1: Write the proportion equation
70,985,714.07 : 97,960,350.74 = 38,390,666.07 : x - Step 2: Convert to fraction form
70,985,714.07/97,960,350.74 = 38,390,666.07/x - Step 3: Cross multiply
70,985,714.07x = 97,960,350.74 × 38,390,666.07 - Step 4: Simplify right side
70,985,714.07x = 3,760,763,113,167,464 - Step 5: Solve for x
x = 3,760,763,113,167,464/70,985,714.07 - Step 6: Final answer
x = 52,979,154.50
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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.