Finding the Fourth Proportional to 375,838,773.99, 518,669,302.72 and 217,065,947.44
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Solution
The fourth proportional to 375,838,773.99, 518,669,302.72 and 217,065,947.44 is: 299,557,819.45
Step by Step Solution
- Step 1: Write the proportion equation
375,838,773.99 : 518,669,302.72 = 217,065,947.44 : x - Step 2: Convert to fraction form
375,838,773.99/518,669,302.72 = 217,065,947.44/x - Step 3: Cross multiply
375,838,773.99x = 518,669,302.72 × 217,065,947.44 - Step 4: Simplify right side
375,838,773.99x = 112,585,443,599,282,288 - Step 5: Solve for x
x = 112,585,443,599,282,288/375,838,773.99 - Step 6: Final answer
x = 299,557,819.45
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1.5x scale
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.