Finding the Fourth Proportional to 1,043,872,397.28, 1,564,774,322.64 and 490,183,668.96
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Solution
The fourth proportional to 1,043,872,397.28, 1,564,774,322.64 and 490,183,668.96 is: 734,789,827.34
Step by Step Solution
- Step 1: Write the proportion equation
1,043,872,397.28 : 1,564,774,322.64 = 490,183,668.96 : x - Step 2: Convert to fraction form
1,043,872,397.28/1,564,774,322.64 = 490,183,668.96/x - Step 3: Cross multiply
1,043,872,397.28x = 1,564,774,322.64 × 490,183,668.96 - Step 4: Simplify right side
1,043,872,397.28x = 767,026,818,566,073,984 - Step 5: Solve for x
x = 767,026,818,566,073,984/1,043,872,397.28 - Step 6: Final answer
x = 734,789,827.34
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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.