Finding the Fourth Proportional to 7,020,901.80, 10,531,352.70 and 1,702,117.80
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Solution
The fourth proportional to 7,020,901.80, 10,531,352.70 and 1,702,117.80 is: 2,553,176.70
Step by Step Solution
- Step 1: Write the proportion equation
7,020,901.80 : 10,531,352.70 = 1,702,117.80 : x - Step 2: Convert to fraction form
7,020,901.80/10,531,352.70 = 1,702,117.80/x - Step 3: Cross multiply
7,020,901.80x = 10,531,352.70 × 1,702,117.80 - Step 4: Simplify right side
7,020,901.80x = 17,925,602,888,748.06 - Step 5: Solve for x
x = 17,925,602,888,748.06/7,020,901.80 - Step 6: Final answer
x = 2,553,176.70
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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.