Finding the Fourth Proportional to 136,564,317.40, 188,463,242.12 and 74,684,655.96
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Solution
The fourth proportional to 136,564,317.40, 188,463,242.12 and 74,684,655.96 is: 103,067,277.51
Step by Step Solution
- Step 1: Write the proportion equation
136,564,317.40 : 188,463,242.12 = 74,684,655.96 : x - Step 2: Convert to fraction form
136,564,317.40/188,463,242.12 = 74,684,655.96/x - Step 3: Cross multiply
136,564,317.40x = 188,463,242.12 × 74,684,655.96 - Step 4: Simplify right side
136,564,317.40x = 14,075,312,398,838,380 - Step 5: Solve for x
x = 14,075,312,398,838,380/136,564,317.40 - Step 6: Final answer
x = 103,067,277.51
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.