Finding the Fourth Proportional to 28,214,081,455.24, 38,935,438,763.75 and 15,526,817,121.14
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Solution
The fourth proportional to 28,214,081,455.24, 38,935,438,763.75 and 15,526,817,121.14 is: 21,427,011,124.75
Step by Step Solution
- Step 1: Write the proportion equation
28,214,081,455.24 : 38,935,438,763.75 = 15,526,817,121.14 : x - Step 2: Convert to fraction form
28,214,081,455.24/38,935,438,763.75 = 15,526,817,121.14/x - Step 3: Cross multiply
28,214,081,455.24x = 38,935,438,763.75 × 15,526,817,121.14 - Step 4: Simplify right side
28,214,081,455.24x = 604,543,437,216,091,471,872 - Step 5: Solve for x
x = 604,543,437,216,091,471,872/28,214,081,455.24 - Step 6: Final answer
x = 21,427,011,124.75
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1.5x scale
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.