Finding the Fourth Proportional to 142,565,278.71, 196,828,941.56 and 97,988,007.63
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Solution
The fourth proportional to 142,565,278.71, 196,828,941.56 and 97,988,007.63 is: 135,284,523.70
Step by Step Solution
- Step 1: Write the proportion equation
142,565,278.71 : 196,828,941.56 = 97,988,007.63 : x - Step 2: Convert to fraction form
142,565,278.71/196,828,941.56 = 97,988,007.63/x - Step 3: Cross multiply
142,565,278.71x = 196,828,941.56 × 97,988,007.63 - Step 4: Simplify right side
142,565,278.71x = 19,286,875,826,896,164 - Step 5: Solve for x
x = 19,286,875,826,896,164/142,565,278.71 - Step 6: Final answer
x = 135,284,523.70
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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.