Finding the Fourth Proportional to 1,038,713,374.70, 1,558,165,843.60 and 339,209,176.68
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Solution
The fourth proportional to 1,038,713,374.70, 1,558,165,843.60 and 339,209,176.68 is: 508,845,044.08
Step by Step Solution
- Step 1: Write the proportion equation
1,038,713,374.70 : 1,558,165,843.60 = 339,209,176.68 : x - Step 2: Convert to fraction form
1,038,713,374.70/1,558,165,843.60 = 339,209,176.68/x - Step 3: Cross multiply
1,038,713,374.70x = 1,558,165,843.60 × 339,209,176.68 - Step 4: Simplify right side
1,038,713,374.70x = 528,544,152,938,453,632 - Step 5: Solve for x
x = 528,544,152,938,453,632/1,038,713,374.70 - Step 6: Final answer
x = 508,845,044.08
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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.