Finding the Fourth Proportional to 1,247,950,724.70, 1,871,926,087.05 and 885,153,668.70
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Solution
The fourth proportional to 1,247,950,724.70, 1,871,926,087.05 and 885,153,668.70 is: 1,327,730,503.05
Step by Step Solution
- Step 1: Write the proportion equation
1,247,950,724.70 : 1,871,926,087.05 = 885,153,668.70 : x - Step 2: Convert to fraction form
1,247,950,724.70/1,871,926,087.05 = 885,153,668.70/x - Step 3: Cross multiply
1,247,950,724.70x = 1,871,926,087.05 × 885,153,668.70 - Step 4: Simplify right side
1,247,950,724.70x = 1,656,942,243,487,543,040 - Step 5: Solve for x
x = 1,656,942,243,487,543,040/1,247,950,724.70 - Step 6: Final answer
x = 1,327,730,503.05
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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.