Finding the Fourth Proportional to 105,153,889.71, 157,589,843.88 and 81,838,785.99
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Solution
The fourth proportional to 105,153,889.71, 157,589,843.88 and 81,838,785.99 is: 122,648,449.27
Step by Step Solution
- Step 1: Write the proportion equation
105,153,889.71 : 157,589,843.88 = 81,838,785.99 : x - Step 2: Convert to fraction form
105,153,889.71/157,589,843.88 = 81,838,785.99/x - Step 3: Cross multiply
105,153,889.71x = 157,589,843.88 × 81,838,785.99 - Step 4: Simplify right side
105,153,889.71x = 12,896,961,507,492,830 - Step 5: Solve for x
x = 12,896,961,507,492,830/105,153,889.71 - Step 6: Final answer
x = 122,648,449.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.