Finding the Fourth Proportional to 1,291,579,846.35, 1,937,974,439.93 and 564,474,079.95
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Solution
The fourth proportional to 1,291,579,846.35, 1,937,974,439.93 and 564,474,079.95 is: 846,975,386.02
Step by Step Solution
- Step 1: Write the proportion equation
1,291,579,846.35 : 1,937,974,439.93 = 564,474,079.95 : x - Step 2: Convert to fraction form
1,291,579,846.35/1,937,974,439.93 = 564,474,079.95/x - Step 3: Cross multiply
1,291,579,846.35x = 1,937,974,439.93 × 564,474,079.95 - Step 4: Simplify right side
1,291,579,846.35x = 1,093,936,338,943,281,024 - Step 5: Solve for x
x = 1,093,936,338,943,281,024/1,291,579,846.35 - Step 6: Final answer
x = 846,975,386.02
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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.