Finding the Fourth Proportional to 472,654,933.52, 708,972,378.96 and 157,543,746.08
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Solution
The fourth proportional to 472,654,933.52, 708,972,378.96 and 157,543,746.08 is: 236,312,278.85
Step by Step Solution
- Step 1: Write the proportion equation
472,654,933.52 : 708,972,378.96 = 157,543,746.08 : x - Step 2: Convert to fraction form
472,654,933.52/708,972,378.96 = 157,543,746.08/x - Step 3: Cross multiply
472,654,933.52x = 708,972,378.96 × 157,543,746.08 - Step 4: Simplify right side
472,654,933.52x = 111,694,164,448,607,792 - Step 5: Solve for x
x = 111,694,164,448,607,792/472,654,933.52 - Step 6: Final answer
x = 236,312,278.85
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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.