Finding the Fourth Proportional to 81,484,658,570.52, 122,226,959,087.70 and 21,791,769,403.92
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Solution
The fourth proportional to 81,484,658,570.52, 122,226,959,087.70 and 21,791,769,403.92 is: 32,687,646,412.32
Step by Step Solution
- Step 1: Write the proportion equation
81,484,658,570.52 : 122,226,959,087.70 = 21,791,769,403.92 : x - Step 2: Convert to fraction form
81,484,658,570.52/122,226,959,087.70 = 21,791,769,403.92/x - Step 3: Cross multiply
81,484,658,570.52x = 122,226,959,087.70 × 21,791,769,403.92 - Step 4: Simplify right side
81,484,658,570.52x = 2,663,541,707,381,522,038,784 - Step 5: Solve for x
x = 2,663,541,707,381,522,038,784/81,484,658,570.52 - Step 6: Final answer
x = 32,687,646,412.32
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1.5x scale
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.