Finding the Fourth Proportional to 155,975,293.14, 215,252,630.55 and 86,360,680.17
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Solution
The fourth proportional to 155,975,293.14, 215,252,630.55 and 86,360,680.17 is: 119,181,462.71
Step by Step Solution
- Step 1: Write the proportion equation
155,975,293.14 : 215,252,630.55 = 86,360,680.17 : x - Step 2: Convert to fraction form
155,975,293.14/215,252,630.55 = 86,360,680.17/x - Step 3: Cross multiply
155,975,293.14x = 215,252,630.55 × 86,360,680.17 - Step 4: Simplify right side
155,975,293.14x = 18,589,363,582,679,724 - Step 5: Solve for x
x = 18,589,363,582,679,724/155,975,293.14 - Step 6: Final answer
x = 119,181,462.71
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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.