Finding the Fourth Proportional to 153,797,210.68, 212,241,474.08 and 87,721,054.46
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Solution
The fourth proportional to 153,797,210.68, 212,241,474.08 and 87,721,054.46 is: 121,055,809.95
Step by Step Solution
- Step 1: Write the proportion equation
153,797,210.68 : 212,241,474.08 = 87,721,054.46 : x - Step 2: Convert to fraction form
153,797,210.68/212,241,474.08 = 87,721,054.46/x - Step 3: Cross multiply
153,797,210.68x = 212,241,474.08 × 87,721,054.46 - Step 4: Simplify right side
153,797,210.68x = 18,618,045,906,442,360 - Step 5: Solve for x
x = 18,618,045,906,442,360/153,797,210.68 - Step 6: Final answer
x = 121,055,809.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.