Finding the Fourth Proportional to 97,806,428.10, 146,709,642.15 and 90,416,117.70
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Solution
The fourth proportional to 97,806,428.10, 146,709,642.15 and 90,416,117.70 is: 135,624,176.55
Step by Step Solution
- Step 1: Write the proportion equation
97,806,428.10 : 146,709,642.15 = 90,416,117.70 : x - Step 2: Convert to fraction form
97,806,428.10/146,709,642.15 = 90,416,117.70/x - Step 3: Cross multiply
97,806,428.10x = 146,709,642.15 × 90,416,117.70 - Step 4: Simplify right side
97,806,428.10x = 13,264,916,272,359,282 - Step 5: Solve for x
x = 13,264,916,272,359,282/97,806,428.10 - Step 6: Final answer
x = 135,624,176.55
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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.