Finding the Fourth Proportional to 97,785,146,918.90, 146,677,720,378.35 and 68,031,253,363.70
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Solution
The fourth proportional to 97,785,146,918.90, 146,677,720,378.35 and 68,031,253,363.70 is: 102,046,880,045.55
Step by Step Solution
- Step 1: Write the proportion equation
97,785,146,918.90 : 146,677,720,378.35 = 68,031,253,363.70 : x - Step 2: Convert to fraction form
97,785,146,918.90/146,677,720,378.35 = 68,031,253,363.70/x - Step 3: Cross multiply
97,785,146,918.90x = 146,677,720,378.35 × 68,031,253,363.70 - Step 4: Simplify right side
97,785,146,918.90x = 9,978,669,157,869,470,875,648 - Step 5: Solve for x
x = 9,978,669,157,869,470,875,648/97,785,146,918.90 - Step 6: Final answer
x = 102,046,880,045.55
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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.