Finding the Fourth Proportional to 754,631,724.11, 1,041,426,149.42 and 420,125,492.07
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Solution
The fourth proportional to 754,631,724.11, 1,041,426,149.42 and 420,125,492.07 is: 579,792,313.93
Step by Step Solution
- Step 1: Write the proportion equation
754,631,724.11 : 1,041,426,149.42 = 420,125,492.07 : x - Step 2: Convert to fraction form
754,631,724.11/1,041,426,149.42 = 420,125,492.07/x - Step 3: Cross multiply
754,631,724.11x = 1,041,426,149.42 × 420,125,492.07 - Step 4: Simplify right side
754,631,724.11x = 437,529,673,480,693,184 - Step 5: Solve for x
x = 437,529,673,480,693,184/754,631,724.11 - Step 6: Final answer
x = 579,792,313.93
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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.