Finding the Fourth Proportional to 6,679,355,480.66, 9,217,690,565.43 and 3,929,804,689.68
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Solution
The fourth proportional to 6,679,355,480.66, 9,217,690,565.43 and 3,929,804,689.68 is: 5,423,236,376.17
Step by Step Solution
- Step 1: Write the proportion equation
6,679,355,480.66 : 9,217,690,565.43 = 3,929,804,689.68 : x - Step 2: Convert to fraction form
6,679,355,480.66/9,217,690,565.43 = 3,929,804,689.68/x - Step 3: Cross multiply
6,679,355,480.66x = 9,217,690,565.43 × 3,929,804,689.68 - Step 4: Simplify right side
6,679,355,480.66x = 36,223,723,612,045,905,920 - Step 5: Solve for x
x = 36,223,723,612,045,905,920/6,679,355,480.66 - Step 6: Final answer
x = 5,423,236,376.17
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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.