Finding the Fourth Proportional to 144,838,943.42, 199,881,530.10 and 78,763,306.17
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Solution
The fourth proportional to 144,838,943.42, 199,881,530.10 and 78,763,306.17 is: 108,695,422.53
Step by Step Solution
- Step 1: Write the proportion equation
144,838,943.42 : 199,881,530.10 = 78,763,306.17 : x - Step 2: Convert to fraction form
144,838,943.42/199,881,530.10 = 78,763,306.17/x - Step 3: Cross multiply
144,838,943.42x = 199,881,530.10 × 78,763,306.17 - Step 4: Simplify right side
144,838,943.42x = 15,743,330,153,402,398 - Step 5: Solve for x
x = 15,743,330,153,402,398/144,838,943.42 - Step 6: Final answer
x = 108,695,422.53
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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.