Finding the Fourth Proportional to 258,805,319.54, 357,181,988.42 and 145,778,531.49
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Solution
The fourth proportional to 258,805,319.54, 357,181,988.42 and 145,778,531.49 is: 201,191,636.40
Step by Step Solution
- Step 1: Write the proportion equation
258,805,319.54 : 357,181,988.42 = 145,778,531.49 : x - Step 2: Convert to fraction form
258,805,319.54/357,181,988.42 = 145,778,531.49/x - Step 3: Cross multiply
258,805,319.54x = 357,181,988.42 × 145,778,531.49 - Step 4: Simplify right side
258,805,319.54x = 52,069,465,746,545,792 - Step 5: Solve for x
x = 52,069,465,746,545,792/258,805,319.54 - Step 6: Final answer
x = 201,191,636.40
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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.