Finding the Fourth Proportional to 487,156,981.05, 730,735,471.58 and 228,876,655.05
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Solution
The fourth proportional to 487,156,981.05, 730,735,471.58 and 228,876,655.05 is: 343,314,982.58
Step by Step Solution
- Step 1: Write the proportion equation
487,156,981.05 : 730,735,471.58 = 228,876,655.05 : x - Step 2: Convert to fraction form
487,156,981.05/730,735,471.58 = 228,876,655.05/x - Step 3: Cross multiply
487,156,981.05x = 730,735,471.58 × 228,876,655.05 - Step 4: Simplify right side
487,156,981.05x = 167,248,290,460,470,368 - Step 5: Solve for x
x = 167,248,290,460,470,368/487,156,981.05 - Step 6: Final answer
x = 343,314,982.58
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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.