Finding the Fourth Proportional to 7,403,189.61, 10,218,970.05 and 5,087,746.95
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Solution
The fourth proportional to 7,403,189.61, 10,218,970.05 and 5,087,746.95 is: 7,022,855.88
Step by Step Solution
- Step 1: Write the proportion equation
7,403,189.61 : 10,218,970.05 = 5,087,746.95 : x - Step 2: Convert to fraction form
7,403,189.61/10,218,970.05 = 5,087,746.95/x - Step 3: Cross multiply
7,403,189.61x = 10,218,970.05 × 5,087,746.95 - Step 4: Simplify right side
7,403,189.61x = 51,991,533,704,028.85 - Step 5: Solve for x
x = 51,991,533,704,028.85/7,403,189.61 - Step 6: Final answer
x = 7,022,855.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.