Finding the Fourth Proportional to 520,830,526.98, 718,746,838.98 and 282,675,715.07
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Solution
The fourth proportional to 520,830,526.98, 718,746,838.98 and 282,675,715.07 is: 390,092,873.09
Step by Step Solution
- Step 1: Write the proportion equation
520,830,526.98 : 718,746,838.98 = 282,675,715.07 : x - Step 2: Convert to fraction form
520,830,526.98/718,746,838.98 = 282,675,715.07/x - Step 3: Cross multiply
520,830,526.98x = 718,746,838.98 × 282,675,715.07 - Step 4: Simplify right side
520,830,526.98x = 203,172,276,662,973,664 - Step 5: Solve for x
x = 203,172,276,662,973,664/520,830,526.98 - Step 6: Final answer
x = 390,092,873.09
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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.