Finding the Fourth Proportional to 4,781,355,923.52, 7,157,323,967.36 and 3,119,685,220.80
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Solution
The fourth proportional to 4,781,355,923.52, 7,157,323,967.36 and 3,119,685,220.80 is: 4,669,930,069.76
Step by Step Solution
- Step 1: Write the proportion equation
4,781,355,923.52 : 7,157,323,967.36 = 3,119,685,220.80 : x - Step 2: Convert to fraction form
4,781,355,923.52/7,157,323,967.36 = 3,119,685,220.80/x - Step 3: Cross multiply
4,781,355,923.52x = 7,157,323,967.36 × 3,119,685,220.80 - Step 4: Simplify right side
4,781,355,923.52x = 22,328,597,801,450,614,784 - Step 5: Solve for x
x = 22,328,597,801,450,614,784/4,781,355,923.52 - Step 6: Final answer
x = 4,669,930,069.76
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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.