Finding the Fourth Proportional to 1,310,651,233.84, 1,808,704,867.35 and 715,943,968.84
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Solution
The fourth proportional to 1,310,651,233.84, 1,808,704,867.35 and 715,943,968.84 is: 988,006,044.44
Step by Step Solution
- Step 1: Write the proportion equation
1,310,651,233.84 : 1,808,704,867.35 = 715,943,968.84 : x - Step 2: Convert to fraction form
1,310,651,233.84/1,808,704,867.35 = 715,943,968.84/x - Step 3: Cross multiply
1,310,651,233.84x = 1,808,704,867.35 × 715,943,968.84 - Step 4: Simplify right side
1,310,651,233.84x = 1,294,931,341,190,784,768 - Step 5: Solve for x
x = 1,294,931,341,190,784,768/1,310,651,233.84 - Step 6: Final answer
x = 988,006,044.44
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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.