Finding the Fourth Proportional to 9,137,683,654.70, 12,609,760,130.95 and 5,275,088,899.49
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Solution
The fourth proportional to 9,137,683,654.70, 12,609,760,130.95 and 5,275,088,899.49 is: 7,279,482,219.53
Step by Step Solution
- Step 1: Write the proportion equation
9,137,683,654.70 : 12,609,760,130.95 = 5,275,088,899.49 : x - Step 2: Convert to fraction form
9,137,683,654.70/12,609,760,130.95 = 5,275,088,899.49/x - Step 3: Cross multiply
9,137,683,654.70x = 12,609,760,130.95 × 5,275,088,899.49 - Step 4: Simplify right side
9,137,683,654.70x = 66,517,605,692,028,157,952 - Step 5: Solve for x
x = 66,517,605,692,028,157,952/9,137,683,654.70 - Step 6: Final answer
x = 7,279,482,219.53
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1.5x scale
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.