Finding the Fourth Proportional to 7,137,403,305.48, 9,849,882,381.12 and 4,280,010,729.57
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Solution
The fourth proportional to 7,137,403,305.48, 9,849,882,381.12 and 4,280,010,729.57 is: 5,906,574,207.99
Step by Step Solution
- Step 1: Write the proportion equation
7,137,403,305.48 : 9,849,882,381.12 = 4,280,010,729.57 : x - Step 2: Convert to fraction form
7,137,403,305.48/9,849,882,381.12 = 4,280,010,729.57/x - Step 3: Cross multiply
7,137,403,305.48x = 9,849,882,381.12 × 4,280,010,729.57 - Step 4: Simplify right side
7,137,403,305.48x = 42,157,602,276,196,106,240 - Step 5: Solve for x
x = 42,157,602,276,196,106,240/7,137,403,305.48 - Step 6: Final answer
x = 5,906,574,207.99
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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.