Finding the Fourth Proportional to 1,247,950,867.70, 1,871,926,301.55 and 885,153,811.70
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Solution
The fourth proportional to 1,247,950,867.70, 1,871,926,301.55 and 885,153,811.70 is: 1,327,730,717.55
Step by Step Solution
- Step 1: Write the proportion equation
1,247,950,867.70 : 1,871,926,301.55 = 885,153,811.70 : x - Step 2: Convert to fraction form
1,247,950,867.70/1,871,926,301.55 = 885,153,811.70/x - Step 3: Cross multiply
1,247,950,867.70x = 1,871,926,301.55 × 885,153,811.70 - Step 4: Simplify right side
1,247,950,867.70x = 1,656,942,701,038,466,048 - Step 5: Solve for x
x = 1,656,942,701,038,466,048/1,247,950,867.70 - Step 6: Final answer
x = 1,327,730,717.55
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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.