Finding the Fourth Proportional to 318,482,866,465.14, 439,506,338,911.35 and 171,995,313,778.56
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Solution
The fourth proportional to 318,482,866,465.14, 439,506,338,911.35 and 171,995,313,778.56 is: 237,353,523,935.95
Step by Step Solution
- Step 1: Write the proportion equation
318,482,866,465.14 : 439,506,338,911.35 = 171,995,313,778.56 : x - Step 2: Convert to fraction form
318,482,866,465.14/439,506,338,911.35 = 171,995,313,778.56/x - Step 3: Cross multiply
318,482,866,465.14x = 439,506,338,911.35 × 171,995,313,778.56 - Step 4: Simplify right side
318,482,866,465.14x = 75,593,030,668,723,777,699,840 - Step 5: Solve for x
x = 75,593,030,668,723,777,699,840/318,482,866,465.14 - Step 6: Final answer
x = 237,353,523,935.95
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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.