Finding the Fourth Proportional to 1,172,493,358.58, 1,758,796,602.10 and 385,529,588.62
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Solution
The fourth proportional to 1,172,493,358.58, 1,758,796,602.10 and 385,529,588.62 is: 578,312,981.91
Step by Step Solution
- Step 1: Write the proportion equation
1,172,493,358.58 : 1,758,796,602.10 = 385,529,588.62 : x - Step 2: Convert to fraction form
1,172,493,358.58/1,758,796,602.10 = 385,529,588.62/x - Step 3: Cross multiply
1,172,493,358.58x = 1,758,796,602.10 × 385,529,588.62 - Step 4: Simplify right side
1,172,493,358.58x = 678,068,130,468,506,112 - Step 5: Solve for x
x = 678,068,130,468,506,112/1,172,493,358.58 - Step 6: Final answer
x = 578,312,981.91
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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.