Finding the Fourth Proportional to 81,775,906.90, 122,663,860.35 and 58,817,655.70
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Solution
The fourth proportional to 81,775,906.90, 122,663,860.35 and 58,817,655.70 is: 88,226,483.55
Step by Step Solution
- Step 1: Write the proportion equation
81,775,906.90 : 122,663,860.35 = 58,817,655.70 : x - Step 2: Convert to fraction form
81,775,906.90/122,663,860.35 = 58,817,655.70/x - Step 3: Cross multiply
81,775,906.90x = 122,663,860.35 × 58,817,655.70 - Step 4: Simplify right side
81,775,906.90x = 7,214,800,704,899,182 - Step 5: Solve for x
x = 7,214,800,704,899,182/81,775,906.90 - Step 6: Final answer
x = 88,226,483.55
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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.