Finding the Fourth Proportional to 136,905,526.24, 188,929,792.35 and 74,181,574.75
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Solution
The fourth proportional to 136,905,526.24, 188,929,792.35 and 74,181,574.75 is: 102,370,663.18
Step by Step Solution
- Step 1: Write the proportion equation
136,905,526.24 : 188,929,792.35 = 74,181,574.75 : x - Step 2: Convert to fraction form
136,905,526.24/188,929,792.35 = 74,181,574.75/x - Step 3: Cross multiply
136,905,526.24x = 188,929,792.35 × 74,181,574.75 - Step 4: Simplify right side
136,905,526.24x = 14,015,109,513,713,502 - Step 5: Solve for x
x = 14,015,109,513,713,502/136,905,526.24 - Step 6: Final answer
x = 102,370,663.18
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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.