Finding the Fourth Proportional to 156,959,241.08, 216,602,033.81 and 86,393,342.58
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Solution
The fourth proportional to 156,959,241.08, 216,602,033.81 and 86,393,342.58 is: 119,221,866.65
Step by Step Solution
- Step 1: Write the proportion equation
156,959,241.08 : 216,602,033.81 = 86,393,342.58 : x - Step 2: Convert to fraction form
156,959,241.08/216,602,033.81 = 86,393,342.58/x - Step 3: Cross multiply
156,959,241.08x = 216,602,033.81 × 86,393,342.58 - Step 4: Simplify right side
156,959,241.08x = 18,712,973,709,608,412 - Step 5: Solve for x
x = 18,712,973,709,608,412/156,959,241.08 - Step 6: Final answer
x = 119,221,866.65
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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.