Finding the Fourth Proportional to 4,292,352,021.80, 6,438,528,032.70 and 2,115,569,685.80
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Solution
The fourth proportional to 4,292,352,021.80, 6,438,528,032.70 and 2,115,569,685.80 is: 3,173,354,528.70
Step by Step Solution
- Step 1: Write the proportion equation
4,292,352,021.80 : 6,438,528,032.70 = 2,115,569,685.80 : x - Step 2: Convert to fraction form
4,292,352,021.80/6,438,528,032.70 = 2,115,569,685.80/x - Step 3: Cross multiply
4,292,352,021.80x = 6,438,528,032.70 × 2,115,569,685.80 - Step 4: Simplify right side
4,292,352,021.80x = 13,621,154,727,153,631,232 - Step 5: Solve for x
x = 13,621,154,727,153,631,232/4,292,352,021.80 - Step 6: Final answer
x = 3,173,354,528.70
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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.