Finding the Fourth Proportional to 168,300,756.41, 252,606,320.62 and 85,360,718.95
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Solution
The fourth proportional to 168,300,756.41, 252,606,320.62 and 85,360,718.95 is: 128,119,787.45
Step by Step Solution
- Step 1: Write the proportion equation
168,300,756.41 : 252,606,320.62 = 85,360,718.95 : x - Step 2: Convert to fraction form
168,300,756.41/252,606,320.62 = 85,360,718.95/x - Step 3: Cross multiply
168,300,756.41x = 252,606,320.62 × 85,360,718.95 - Step 4: Simplify right side
168,300,756.41x = 21,562,657,138,592,496 - Step 5: Solve for x
x = 21,562,657,138,592,496/168,300,756.41 - Step 6: Final answer
x = 128,119,787.45
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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.