Finding the Fourth Proportional to 129,085,297.74, 178,132,513.97 and 70,346,701.70
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Solution
The fourth proportional to 129,085,297.74, 178,132,513.97 and 70,346,701.70 is: 97,075,616.21
Step by Step Solution
- Step 1: Write the proportion equation
129,085,297.74 : 178,132,513.97 = 70,346,701.70 : x - Step 2: Convert to fraction form
129,085,297.74/178,132,513.97 = 70,346,701.70/x - Step 3: Cross multiply
129,085,297.74x = 178,132,513.97 × 70,346,701.70 - Step 4: Simplify right side
129,085,297.74x = 12,531,034,822,076,276 - Step 5: Solve for x
x = 12,531,034,822,076,276/129,085,297.74 - Step 6: Final answer
x = 97,075,616.21
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.