Finding the Fourth Proportional to 921,752,460.16, 1,272,116,971.58 and 564,757,153.96
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Solution
The fourth proportional to 921,752,460.16, 1,272,116,971.58 and 564,757,153.96 is: 779,425,270.26
Step by Step Solution
- Step 1: Write the proportion equation
921,752,460.16 : 1,272,116,971.58 = 564,757,153.96 : x - Step 2: Convert to fraction form
921,752,460.16/1,272,116,971.58 = 564,757,153.96/x - Step 3: Cross multiply
921,752,460.16x = 1,272,116,971.58 × 564,757,153.96 - Step 4: Simplify right side
921,752,460.16x = 718,437,160,373,735,040 - Step 5: Solve for x
x = 718,437,160,373,735,040/921,752,460.16 - Step 6: Final answer
x = 779,425,270.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.