Finding the Fourth Proportional to 257,423,316.84, 355,358,685.06 and 153,035,182.44
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Solution
The fourth proportional to 257,423,316.84, 355,358,685.06 and 153,035,182.44 is: 211,256,625.34
Step by Step Solution
- Step 1: Write the proportion equation
257,423,316.84 : 355,358,685.06 = 153,035,182.44 : x - Step 2: Convert to fraction form
257,423,316.84/355,358,685.06 = 153,035,182.44/x - Step 3: Cross multiply
257,423,316.84x = 355,358,685.06 × 153,035,182.44 - Step 4: Simplify right side
257,423,316.84x = 54,382,381,199,795,600 - Step 5: Solve for x
x = 54,382,381,199,795,600/257,423,316.84 - Step 6: Final answer
x = 211,256,625.34
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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.