Finding the Fourth Proportional to 7,657,921,968.62, 10,567,932,337.03 and 4,137,656,784.62
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Solution
The fourth proportional to 7,657,921,968.62, 10,567,932,337.03 and 4,137,656,784.62 is: 5,709,966,373.76
Step by Step Solution
- Step 1: Write the proportion equation
7,657,921,968.62 : 10,567,932,337.03 = 4,137,656,784.62 : x - Step 2: Convert to fraction form
7,657,921,968.62/10,567,932,337.03 = 4,137,656,784.62/x - Step 3: Cross multiply
7,657,921,968.62x = 10,567,932,337.03 × 4,137,656,784.62 - Step 4: Simplify right side
7,657,921,968.62x = 43,726,476,933,652,021,248 - Step 5: Solve for x
x = 43,726,476,933,652,021,248/7,657,921,968.62 - Step 6: Final answer
x = 5,709,966,373.76
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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.