Finding the Fourth Proportional to 84,564,228.30, 126,846,342.45 and 57,283,590.30
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Solution
The fourth proportional to 84,564,228.30, 126,846,342.45 and 57,283,590.30 is: 85,925,385.45
Step by Step Solution
- Step 1: Write the proportion equation
84,564,228.30 : 126,846,342.45 = 57,283,590.30 : x - Step 2: Convert to fraction form
84,564,228.30/126,846,342.45 = 57,283,590.30/x - Step 3: Cross multiply
84,564,228.30x = 126,846,342.45 × 57,283,590.30 - Step 4: Simplify right side
84,564,228.30x = 7,266,213,911,959,298 - Step 5: Solve for x
x = 7,266,213,911,959,298/84,564,228.30 - Step 6: Final answer
x = 85,925,385.45
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1.5x scale
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.