Finding the Fourth Proportional to 1,120,298,313.80, 1,680,447,470.70 and 603,737,661.80
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Solution
The fourth proportional to 1,120,298,313.80, 1,680,447,470.70 and 603,737,661.80 is: 905,606,492.70
Step by Step Solution
- Step 1: Write the proportion equation
1,120,298,313.80 : 1,680,447,470.70 = 603,737,661.80 : x - Step 2: Convert to fraction form
1,120,298,313.80/1,680,447,470.70 = 603,737,661.80/x - Step 3: Cross multiply
1,120,298,313.80x = 1,680,447,470.70 × 603,737,661.80 - Step 4: Simplify right side
1,120,298,313.80x = 1,014,549,426,738,141,952 - Step 5: Solve for x
x = 1,014,549,426,738,141,952/1,120,298,313.80 - Step 6: Final answer
x = 905,606,492.70
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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.