Finding the Fourth Proportional to 898,960,315.20, 1,348,692,415.20 and 438,913,492.80
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Solution
The fourth proportional to 898,960,315.20, 1,348,692,415.20 and 438,913,492.80 is: 658,493,248.99
Step by Step Solution
- Step 1: Write the proportion equation
898,960,315.20 : 1,348,692,415.20 = 438,913,492.80 : x - Step 2: Convert to fraction form
898,960,315.20/1,348,692,415.20 = 438,913,492.80/x - Step 3: Cross multiply
898,960,315.20x = 1,348,692,415.20 × 438,913,492.80 - Step 4: Simplify right side
898,960,315.20x = 591,959,298,668,299,904 - Step 5: Solve for x
x = 591,959,298,668,299,904/898,960,315.20 - Step 6: Final answer
x = 658,493,248.99
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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.