Finding the Fourth Proportional to 876,656,231.51, 1,209,905,958.77 and 537,504,712.14
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Solution
The fourth proportional to 876,656,231.51, 1,209,905,958.77 and 537,504,712.14 is: 741,830,298.71
Step by Step Solution
- Step 1: Write the proportion equation
876,656,231.51 : 1,209,905,958.77 = 537,504,712.14 : x - Step 2: Convert to fraction form
876,656,231.51/1,209,905,958.77 = 537,504,712.14/x - Step 3: Cross multiply
876,656,231.51x = 1,209,905,958.77 × 537,504,712.14 - Step 4: Simplify right side
876,656,231.51x = 650,330,154,088,977,792 - Step 5: Solve for x
x = 650,330,154,088,977,792/876,656,231.51 - Step 6: Final answer
x = 741,830,298.71
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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.