Finding the Fourth Proportional to 163,929,688.80, 246,177,968.40 and 87,402,184.80
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Solution
The fourth proportional to 163,929,688.80, 246,177,968.40 and 87,402,184.80 is: 131,254,395.99
Step by Step Solution
- Step 1: Write the proportion equation
163,929,688.80 : 246,177,968.40 = 87,402,184.80 : x - Step 2: Convert to fraction form
163,929,688.80/246,177,968.40 = 87,402,184.80/x - Step 3: Cross multiply
163,929,688.80x = 246,177,968.40 × 87,402,184.80 - Step 4: Simplify right side
163,929,688.80x = 21,516,492,287,785,360 - Step 5: Solve for x
x = 21,516,492,287,785,360/163,929,688.80 - Step 6: Final answer
x = 131,254,395.99
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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.