Finding the Fourth Proportional to 1,335,210,746.28, 1,842,701,136.80 and 740,686,912.24
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Solution
The fourth proportional to 1,335,210,746.28, 1,842,701,136.80 and 740,686,912.24 is: 1,022,209,129.91
Step by Step Solution
- Step 1: Write the proportion equation
1,335,210,746.28 : 1,842,701,136.80 = 740,686,912.24 : x - Step 2: Convert to fraction form
1,335,210,746.28/1,842,701,136.80 = 740,686,912.24/x - Step 3: Cross multiply
1,335,210,746.28x = 1,842,701,136.80 × 740,686,912.24 - Step 4: Simplify right side
1,335,210,746.28x = 1,364,864,615,197,529,856 - Step 5: Solve for x
x = 1,364,864,615,197,529,856/1,335,210,746.28 - Step 6: Final answer
x = 1,022,209,129.91
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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.