Finding the Fourth Proportional to 782,331,201.60, 1,173,496,802.40 and 782,331,201.60
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Solution
The fourth proportional to 782,331,201.60, 1,173,496,802.40 and 782,331,201.60 is: 1,173,496,802.40
Step by Step Solution
- Step 1: Write the proportion equation
782,331,201.60 : 1,173,496,802.40 = 782,331,201.60 : x - Step 2: Convert to fraction form
782,331,201.60/1,173,496,802.40 = 782,331,201.60/x - Step 3: Cross multiply
782,331,201.60x = 1,173,496,802.40 × 782,331,201.60 - Step 4: Simplify right side
782,331,201.60x = 918,063,163,495,349,888 - Step 5: Solve for x
x = 918,063,163,495,349,888/782,331,201.60 - Step 6: Final answer
x = 1,173,496,802.40
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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.