Finding the Fourth Proportional to 1,386,541,975.08, 2,079,812,836.36 and 610,187,635.60
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Solution
The fourth proportional to 1,386,541,975.08, 2,079,812,836.36 and 610,187,635.60 is: 915,281,397.84
Step by Step Solution
- Step 1: Write the proportion equation
1,386,541,975.08 : 2,079,812,836.36 = 610,187,635.60 : x - Step 2: Convert to fraction form
1,386,541,975.08/2,079,812,836.36 = 610,187,635.60/x - Step 3: Cross multiply
1,386,541,975.08x = 2,079,812,836.36 × 610,187,635.60 - Step 4: Simplify right side
1,386,541,975.08x = 1,269,076,077,109,038,080 - Step 5: Solve for x
x = 1,269,076,077,109,038,080/1,386,541,975.08 - Step 6: Final answer
x = 915,281,397.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.