Finding the Fourth Proportional to 885,737,207.70, 1,328,605,811.55 and 880,635,374.10
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Solution
The fourth proportional to 885,737,207.70, 1,328,605,811.55 and 880,635,374.10 is: 1,320,953,061.15
Step by Step Solution
- Step 1: Write the proportion equation
885,737,207.70 : 1,328,605,811.55 = 880,635,374.10 : x - Step 2: Convert to fraction form
885,737,207.70/1,328,605,811.55 = 880,635,374.10/x - Step 3: Cross multiply
885,737,207.70x = 1,328,605,811.55 × 880,635,374.10 - Step 4: Simplify right side
885,737,207.70x = 1,170,017,275,885,768,448 - Step 5: Solve for x
x = 1,170,017,275,885,768,448/885,737,207.70 - Step 6: Final answer
x = 1,320,953,061.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.