Finding the Fourth Proportional to 782,326,537.80, 1,173,671,317.92 and 257,676,812.08
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Solution
The fourth proportional to 782,326,537.80, 1,173,671,317.92 and 257,676,812.08 is: 386,575,002.91
Step by Step Solution
- Step 1: Write the proportion equation
782,326,537.80 : 1,173,671,317.92 = 257,676,812.08 : x - Step 2: Convert to fraction form
782,326,537.80/1,173,671,317.92 = 257,676,812.08/x - Step 3: Cross multiply
782,326,537.80x = 1,173,671,317.92 × 257,676,812.08 - Step 4: Simplify right side
782,326,537.80x = 302,427,883,629,377,024 - Step 5: Solve for x
x = 302,427,883,629,377,024/782,326,537.80 - Step 6: Final answer
x = 386,575,002.91
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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.