Finding the Fourth Proportional to 108,871,570.70, 163,307,356.05 and 81,997,714.70
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Solution
The fourth proportional to 108,871,570.70, 163,307,356.05 and 81,997,714.70 is: 122,996,572.05
Step by Step Solution
- Step 1: Write the proportion equation
108,871,570.70 : 163,307,356.05 = 81,997,714.70 : x - Step 2: Convert to fraction form
108,871,570.70/163,307,356.05 = 81,997,714.70/x - Step 3: Cross multiply
108,871,570.70x = 163,307,356.05 × 81,997,714.70 - Step 4: Simplify right side
108,871,570.70x = 13,390,829,989,799,220 - Step 5: Solve for x
x = 13,390,829,989,799,220/108,871,570.70 - Step 6: Final answer
x = 122,996,572.05
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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.