Finding the Fourth Proportional to 70,886,851.20, 106,330,276.80 and 40,569,782.40
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Solution
The fourth proportional to 70,886,851.20, 106,330,276.80 and 40,569,782.40 is: 60,854,673.60
Step by Step Solution
- Step 1: Write the proportion equation
70,886,851.20 : 106,330,276.80 = 40,569,782.40 : x - Step 2: Convert to fraction form
70,886,851.20/106,330,276.80 = 40,569,782.40/x - Step 3: Cross multiply
70,886,851.20x = 106,330,276.80 × 40,569,782.40 - Step 4: Simplify right side
70,886,851.20x = 4,313,796,192,307,768 - Step 5: Solve for x
x = 4,313,796,192,307,768/70,886,851.20 - Step 6: Final answer
x = 60,854,673.60
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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.