Finding the Fourth Proportional to 249,103,660.30, 373,655,490.45 and 163,107,321.10
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Solution
The fourth proportional to 249,103,660.30, 373,655,490.45 and 163,107,321.10 is: 244,660,981.65
Step by Step Solution
- Step 1: Write the proportion equation
249,103,660.30 : 373,655,490.45 = 163,107,321.10 : x - Step 2: Convert to fraction form
249,103,660.30/373,655,490.45 = 163,107,321.10/x - Step 3: Cross multiply
249,103,660.30x = 373,655,490.45 × 163,107,321.10 - Step 4: Simplify right side
249,103,660.30x = 60,945,946,061,606,128 - Step 5: Solve for x
x = 60,945,946,061,606,128/249,103,660.30 - Step 6: Final answer
x = 244,660,981.65
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Double scale
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Similar ratio
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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.