Finding the Fourth Proportional to 821,382,835.18, 1,133,563,925.84 and 464,026,669.56
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Solution
The fourth proportional to 821,382,835.18, 1,133,563,925.84 and 464,026,669.56 is: 640,388,221.80
Step by Step Solution
- Step 1: Write the proportion equation
821,382,835.18 : 1,133,563,925.84 = 464,026,669.56 : x - Step 2: Convert to fraction form
821,382,835.18/1,133,563,925.84 = 464,026,669.56/x - Step 3: Cross multiply
821,382,835.18x = 1,133,563,925.84 × 464,026,669.56 - Step 4: Simplify right side
821,382,835.18x = 526,003,893,240,894,016 - Step 5: Solve for x
x = 526,003,893,240,894,016/821,382,835.18 - Step 6: Final answer
x = 640,388,221.80
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1.5x scale
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.