Finding the Fourth Proportional to 168,513,020.68, 232,547,911.86 and 91,250,684.68
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Solution
The fourth proportional to 168,513,020.68, 232,547,911.86 and 91,250,684.68 is: 125,925,914.17
Step by Step Solution
- Step 1: Write the proportion equation
168,513,020.68 : 232,547,911.86 = 91,250,684.68 : x - Step 2: Convert to fraction form
168,513,020.68/232,547,911.86 = 91,250,684.68/x - Step 3: Cross multiply
168,513,020.68x = 232,547,911.86 × 91,250,684.68 - Step 4: Simplify right side
168,513,020.68x = 21,220,156,178,129,296 - Step 5: Solve for x
x = 21,220,156,178,129,296/168,513,020.68 - Step 6: Final answer
x = 125,925,914.17
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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.