Finding the Fourth Proportional to 1,581,132,480.08, 2,181,963,029.18 and 876,329,963.84
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Solution
The fourth proportional to 1,581,132,480.08, 2,181,963,029.18 and 876,329,963.84 is: 1,209,335,464.65
Step by Step Solution
- Step 1: Write the proportion equation
1,581,132,480.08 : 2,181,963,029.18 = 876,329,963.84 : x - Step 2: Convert to fraction form
1,581,132,480.08/2,181,963,029.18 = 876,329,963.84/x - Step 3: Cross multiply
1,581,132,480.08x = 2,181,963,029.18 × 876,329,963.84 - Step 4: Simplify right side
1,581,132,480.08x = 1,912,119,582,462,599,680 - Step 5: Solve for x
x = 1,912,119,582,462,599,680/1,581,132,480.08 - Step 6: Final answer
x = 1,209,335,464.65
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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.