Finding the Fourth Proportional to 99,804,547.10, 149,482,871.85 and 81,888,643.10
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Solution
The fourth proportional to 99,804,547.10, 149,482,871.85 and 81,888,643.10 is: 122,649,216.88
Step by Step Solution
- Step 1: Write the proportion equation
99,804,547.10 : 149,482,871.85 = 81,888,643.10 : x - Step 2: Convert to fraction form
99,804,547.10/149,482,871.85 = 81,888,643.10/x - Step 3: Cross multiply
99,804,547.10x = 149,482,871.85 × 81,888,643.10 - Step 4: Simplify right side
99,804,547.10x = 12,240,949,542,487,686 - Step 5: Solve for x
x = 12,240,949,542,487,686/99,804,547.10 - Step 6: Final answer
x = 122,649,216.88
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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.