Finding the Fourth Proportional to 1,209,239,651,884.80, 1,668,750,655,783.70 and 653,044,725,272.73
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Solution
The fourth proportional to 1,209,239,651,884.80, 1,668,750,655,783.70 and 653,044,725,272.73 is: 901,201,686,412.09
Step by Step Solution
- Step 1: Write the proportion equation
1,209,239,651,884.80 : 1,668,750,655,783.70 = 653,044,725,272.73 : x - Step 2: Convert to fraction form
1,209,239,651,884.80/1,668,750,655,783.70 = 653,044,725,272.73/x - Step 3: Cross multiply
1,209,239,651,884.80x = 1,668,750,655,783.70 × 653,044,725,272.73 - Step 4: Simplify right side
1,209,239,651,884.80x = 1,089,768,813,554,954,384,965,632 - Step 5: Solve for x
x = 1,089,768,813,554,954,384,965,632/1,209,239,651,884.80 - Step 6: Final answer
x = 901,201,686,412.09
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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.