Finding the Fourth Proportional to 485,441,264.04, 670,091,120.99 and 318,188,303.63
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Solution
The fourth proportional to 485,441,264.04, 670,091,120.99 and 318,188,303.63 is: 439,219,268.85
Step by Step Solution
- Step 1: Write the proportion equation
485,441,264.04 : 670,091,120.99 = 318,188,303.63 : x - Step 2: Convert to fraction form
485,441,264.04/670,091,120.99 = 318,188,303.63/x - Step 3: Cross multiply
485,441,264.04x = 670,091,120.99 × 318,188,303.63 - Step 4: Simplify right side
485,441,264.04x = 213,215,157,060,391,808 - Step 5: Solve for x
x = 213,215,157,060,391,808/485,441,264.04 - Step 6: Final answer
x = 439,219,268.85
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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.