Finding the Fourth Proportional to 1,272,576,578.55, 1,756,128,152.93 and 736,750,839.71
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Solution
The fourth proportional to 1,272,576,578.55, 1,756,128,152.93 and 736,750,839.71 is: 1,016,700,223.08
Step by Step Solution
- Step 1: Write the proportion equation
1,272,576,578.55 : 1,756,128,152.93 = 736,750,839.71 : x - Step 2: Convert to fraction form
1,272,576,578.55/1,756,128,152.93 = 736,750,839.71/x - Step 3: Cross multiply
1,272,576,578.55x = 1,756,128,152.93 × 736,750,839.71 - Step 4: Simplify right side
1,272,576,578.55x = 1,293,828,891,297,084,416 - Step 5: Solve for x
x = 1,293,828,891,297,084,416/1,272,576,578.55 - Step 6: Final answer
x = 1,016,700,223.08
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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.