Finding the Fourth Proportional to 247,993,730,354.08, 371,688,385,956.72 and 128,545,201,750.24
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Solution
The fourth proportional to 247,993,730,354.08, 371,688,385,956.72 and 128,545,201,750.24 is: 192,661,155,154.25
Step by Step Solution
- Step 1: Write the proportion equation
247,993,730,354.08 : 371,688,385,956.72 = 128,545,201,750.24 : x - Step 2: Convert to fraction form
247,993,730,354.08/371,688,385,956.72 = 128,545,201,750.24/x - Step 3: Cross multiply
247,993,730,354.08x = 371,688,385,956.72 × 128,545,201,750.24 - Step 4: Simplify right side
247,993,730,354.08x = 47,778,758,561,027,644,719,104 - Step 5: Solve for x
x = 47,778,758,561,027,644,719,104/247,993,730,354.08 - Step 6: Final answer
x = 192,661,155,154.25
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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.