Finding the Fourth Proportional to 88,315,473.71, 121,875,359.57 and 49,156,410.08
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Solution
The fourth proportional to 88,315,473.71, 121,875,359.57 and 49,156,410.08 is: 67,835,849.17
Step by Step Solution
- Step 1: Write the proportion equation
88,315,473.71 : 121,875,359.57 = 49,156,410.08 : x - Step 2: Convert to fraction form
88,315,473.71/121,875,359.57 = 49,156,410.08/x - Step 3: Cross multiply
88,315,473.71x = 121,875,359.57 × 49,156,410.08 - Step 4: Simplify right side
88,315,473.71x = 5,990,955,153,670,372 - Step 5: Solve for x
x = 5,990,955,153,670,372/88,315,473.71 - Step 6: Final answer
x = 67,835,849.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.