Finding the Fourth Proportional to 87,701,130.84, 131,550,970.14 and 68,547,987.48
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Solution
The fourth proportional to 87,701,130.84, 131,550,970.14 and 68,547,987.48 is: 102,821,413.68
Step by Step Solution
- Step 1: Write the proportion equation
87,701,130.84 : 131,550,970.14 = 68,547,987.48 : x - Step 2: Convert to fraction form
87,701,130.84/131,550,970.14 = 68,547,987.48/x - Step 3: Cross multiply
87,701,130.84x = 131,550,970.14 × 68,547,987.48 - Step 4: Simplify right side
87,701,130.84x = 9,017,554,254,138,574 - Step 5: Solve for x
x = 9,017,554,254,138,574/87,701,130.84 - Step 6: Final answer
x = 102,821,413.68
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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.