Finding the Fourth Proportional to 611,816,691.80, 917,725,037.70 and 528,593,031.20
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Solution
The fourth proportional to 611,816,691.80, 917,725,037.70 and 528,593,031.20 is: 792,889,546.80
Step by Step Solution
- Step 1: Write the proportion equation
611,816,691.80 : 917,725,037.70 = 528,593,031.20 : x - Step 2: Convert to fraction form
611,816,691.80/917,725,037.70 = 528,593,031.20/x - Step 3: Cross multiply
611,816,691.80x = 917,725,037.70 × 528,593,031.20 - Step 4: Simplify right side
611,816,691.80x = 485,103,059,485,977,280 - Step 5: Solve for x
x = 485,103,059,485,977,280/611,816,691.80 - Step 6: Final answer
x = 792,889,546.80
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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.