Finding the Fourth Proportional to 77,254,302.80, 115,881,454.20 and 26,137,989.20
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Solution
The fourth proportional to 77,254,302.80, 115,881,454.20 and 26,137,989.20 is: 39,206,983.80
Step by Step Solution
- Step 1: Write the proportion equation
77,254,302.80 : 115,881,454.20 = 26,137,989.20 : x - Step 2: Convert to fraction form
77,254,302.80/115,881,454.20 = 26,137,989.20/x - Step 3: Cross multiply
77,254,302.80x = 115,881,454.20 × 26,137,989.20 - Step 4: Simplify right side
77,254,302.80x = 3,028,908,198,359,894.50 - Step 5: Solve for x
x = 3,028,908,198,359,894.50/77,254,302.80 - Step 6: Final answer
x = 39,206,983.80
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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.