Finding the Fourth Proportional to 992,137,552.07, 1,369,138,956.66 and 546,091,378.79
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Solution
The fourth proportional to 992,137,552.07, 1,369,138,956.66 and 546,091,378.79 is: 753,600,122.32
Step by Step Solution
- Step 1: Write the proportion equation
992,137,552.07 : 1,369,138,956.66 = 546,091,378.79 : x - Step 2: Convert to fraction form
992,137,552.07/1,369,138,956.66 = 546,091,378.79/x - Step 3: Cross multiply
992,137,552.07x = 1,369,138,956.66 × 546,091,378.79 - Step 4: Simplify right side
992,137,552.07x = 747,674,980,590,715,776 - Step 5: Solve for x
x = 747,674,980,590,715,776/992,137,552.07 - Step 6: Final answer
x = 753,600,122.32
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Double scale
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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.