Finding the Fourth Proportional to 98,671,948.74, 136,165,639.68 and 54,618,001.92
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Solution
The fourth proportional to 98,671,948.74, 136,165,639.68 and 54,618,001.92 is: 75,371,929.55
Step by Step Solution
- Step 1: Write the proportion equation
98,671,948.74 : 136,165,639.68 = 54,618,001.92 : x - Step 2: Convert to fraction form
98,671,948.74/136,165,639.68 = 54,618,001.92/x - Step 3: Cross multiply
98,671,948.74x = 136,165,639.68 × 54,618,001.92 - Step 4: Simplify right side
98,671,948.74x = 7,437,095,169,480,269 - Step 5: Solve for x
x = 7,437,095,169,480,269/98,671,948.74 - Step 6: Final answer
x = 75,371,929.55
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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.