Finding the Fourth Proportional to 646,992,750.40, 970,489,125.60 and 402,104,737.60
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Solution
The fourth proportional to 646,992,750.40, 970,489,125.60 and 402,104,737.60 is: 603,157,106.40
Step by Step Solution
- Step 1: Write the proportion equation
646,992,750.40 : 970,489,125.60 = 402,104,737.60 : x - Step 2: Convert to fraction form
646,992,750.40/970,489,125.60 = 402,104,737.60/x - Step 3: Cross multiply
646,992,750.40x = 970,489,125.60 × 402,104,737.60 - Step 4: Simplify right side
646,992,750.40x = 390,238,275,193,041,472 - Step 5: Solve for x
x = 390,238,275,193,041,472/646,992,750.40 - Step 6: Final answer
x = 603,157,106.40
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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.