Finding the Fourth Proportional to 578,392,507.49, 867,586,868.88 and 209,926,968.62
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Solution
The fourth proportional to 578,392,507.49, 867,586,868.88 and 209,926,968.62 is: 314,889,766.10
Step by Step Solution
- Step 1: Write the proportion equation
578,392,507.49 : 867,586,868.88 = 209,926,968.62 : x - Step 2: Convert to fraction form
578,392,507.49/867,586,868.88 = 209,926,968.62/x - Step 3: Cross multiply
578,392,507.49x = 867,586,868.88 × 209,926,968.62 - Step 4: Simplify right side
578,392,507.49x = 182,129,881,398,495,808 - Step 5: Solve for x
x = 182,129,881,398,495,808/578,392,507.49 - Step 6: Final answer
x = 314,889,766.10
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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.