Finding the Fourth Proportional to 147,744,307.40, 221,616,461.10 and 139,808,121.80
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Solution
The fourth proportional to 147,744,307.40, 221,616,461.10 and 139,808,121.80 is: 209,712,182.70
Step by Step Solution
- Step 1: Write the proportion equation
147,744,307.40 : 221,616,461.10 = 139,808,121.80 : x - Step 2: Convert to fraction form
147,744,307.40/221,616,461.10 = 139,808,121.80/x - Step 3: Cross multiply
147,744,307.40x = 221,616,461.10 × 139,808,121.80 - Step 4: Simplify right side
147,744,307.40x = 30,983,781,186,353,764 - Step 5: Solve for x
x = 30,983,781,186,353,764/147,744,307.40 - Step 6: Final answer
x = 209,712,182.70
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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.