Finding the Fourth Proportional to 1,247,950,808.20, 1,871,926,212.30 and 885,153,752.20
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Solution
The fourth proportional to 1,247,950,808.20, 1,871,926,212.30 and 885,153,752.20 is: 1,327,730,628.30
Step by Step Solution
- Step 1: Write the proportion equation
1,247,950,808.20 : 1,871,926,212.30 = 885,153,752.20 : x - Step 2: Convert to fraction form
1,247,950,808.20/1,871,926,212.30 = 885,153,752.20/x - Step 3: Cross multiply
1,247,950,808.20x = 1,871,926,212.30 × 885,153,752.20 - Step 4: Simplify right side
1,247,950,808.20x = 1,656,942,510,658,878,720 - Step 5: Solve for x
x = 1,656,942,510,658,878,720/1,247,950,808.20 - Step 6: Final answer
x = 1,327,730,628.30
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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.