Finding the Fourth Proportional to 472,392,830.80, 708,589,246.20 and 442,159,742.80
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Solution
The fourth proportional to 472,392,830.80, 708,589,246.20 and 442,159,742.80 is: 663,239,614.20
Step by Step Solution
- Step 1: Write the proportion equation
472,392,830.80 : 708,589,246.20 = 442,159,742.80 : x - Step 2: Convert to fraction form
472,392,830.80/708,589,246.20 = 442,159,742.80/x - Step 3: Cross multiply
472,392,830.80x = 708,589,246.20 × 442,159,742.80 - Step 4: Simplify right side
472,392,830.80x = 313,309,638,850,637,888 - Step 5: Solve for x
x = 313,309,638,850,637,888/472,392,830.80 - Step 6: Final answer
x = 663,239,614.20
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1.5x scale
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.