Finding the Fourth Proportional to 608,759,376.84, 913,128,378.30 and 421,840,948.68
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Solution
The fourth proportional to 608,759,376.84, 913,128,378.30 and 421,840,948.68 is: 632,754,017.47
Step by Step Solution
- Step 1: Write the proportion equation
608,759,376.84 : 913,128,378.30 = 421,840,948.68 : x - Step 2: Convert to fraction form
608,759,376.84/913,128,378.30 = 421,840,948.68/x - Step 3: Cross multiply
608,759,376.84x = 913,128,378.30 × 421,840,948.68 - Step 4: Simplify right side
608,759,376.84x = 385,194,941,368,701,888 - Step 5: Solve for x
x = 385,194,941,368,701,888/608,759,376.84 - Step 6: Final answer
x = 632,754,017.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.