Finding the Fourth Proportional to 77,119,371,177.12, 115,626,246,585.48 and 39,272,686,103.52
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Solution
The fourth proportional to 77,119,371,177.12, 115,626,246,585.48 and 39,272,686,103.52 is: 58,882,135,813.20
Step by Step Solution
- Step 1: Write the proportion equation
77,119,371,177.12 : 115,626,246,585.48 = 39,272,686,103.52 : x - Step 2: Convert to fraction form
77,119,371,177.12/115,626,246,585.48 = 39,272,686,103.52/x - Step 3: Cross multiply
77,119,371,177.12x = 115,626,246,585.48 × 39,272,686,103.52 - Step 4: Simplify right side
77,119,371,177.12x = 4,540,953,287,479,756,587,008 - Step 5: Solve for x
x = 4,540,953,287,479,756,587,008/77,119,371,177.12 - Step 6: Final answer
x = 58,882,135,813.20
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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.