Finding the Fourth Proportional to 646,637,128.02, 892,359,594.72 and 349,279,368.84
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Solution
The fourth proportional to 646,637,128.02, 892,359,594.72 and 349,279,368.84 is: 482,005,722.40
Step by Step Solution
- Step 1: Write the proportion equation
646,637,128.02 : 892,359,594.72 = 349,279,368.84 : x - Step 2: Convert to fraction form
646,637,128.02/892,359,594.72 = 349,279,368.84/x - Step 3: Cross multiply
646,637,128.02x = 892,359,594.72 × 349,279,368.84 - Step 4: Simplify right side
646,637,128.02x = 311,682,796,022,119,808 - Step 5: Solve for x
x = 311,682,796,022,119,808/646,637,128.02 - Step 6: Final answer
x = 482,005,722.40
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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.