Finding the Fourth Proportional to 141,686,990,637.12, 195,530,370,065.46 and 84,599,289,787.68
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Solution
The fourth proportional to 141,686,990,637.12, 195,530,370,065.46 and 84,599,289,787.68 is: 116,748,406,929.09
Step by Step Solution
- Step 1: Write the proportion equation
141,686,990,637.12 : 195,530,370,065.46 = 84,599,289,787.68 : x - Step 2: Convert to fraction form
141,686,990,637.12/195,530,370,065.46 = 84,599,289,787.68/x - Step 3: Cross multiply
141,686,990,637.12x = 195,530,370,065.46 × 84,599,289,787.68 - Step 4: Simplify right side
141,686,990,637.12x = 16,541,730,439,460,158,439,424 - Step 5: Solve for x
x = 16,541,730,439,460,158,439,424/141,686,990,637.12 - Step 6: Final answer
x = 116,748,406,929.09
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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.