Finding the Fourth Proportional to 212,006,037.12, 292,564,135.77 and 117,918,160.15
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Solution
The fourth proportional to 212,006,037.12, 292,564,135.77 and 117,918,160.15 is: 162,724,727.48
Step by Step Solution
- Step 1: Write the proportion equation
212,006,037.12 : 292,564,135.77 = 117,918,160.15 : x - Step 2: Convert to fraction form
212,006,037.12/292,564,135.77 = 117,918,160.15/x - Step 3: Cross multiply
212,006,037.12x = 292,564,135.77 × 117,918,160.15 - Step 4: Simplify right side
212,006,037.12x = 34,498,624,615,257,656 - Step 5: Solve for x
x = 34,498,624,615,257,656/212,006,037.12 - Step 6: Final answer
x = 162,724,727.48
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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.