Finding the Fourth Proportional to 1,488,363,525.32, 2,053,921,615.99 and 828,313,628.36
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Solution
The fourth proportional to 1,488,363,525.32, 2,053,921,615.99 and 828,313,628.36 is: 1,143,061,649.36
Step by Step Solution
- Step 1: Write the proportion equation
1,488,363,525.32 : 2,053,921,615.99 = 828,313,628.36 : x - Step 2: Convert to fraction form
1,488,363,525.32/2,053,921,615.99 = 828,313,628.36/x - Step 3: Cross multiply
1,488,363,525.32x = 2,053,921,615.99 × 828,313,628.36 - Step 4: Simplify right side
1,488,363,525.32x = 1,701,291,266,095,371,008 - Step 5: Solve for x
x = 1,701,291,266,095,371,008/1,488,363,525.32 - Step 6: Final answer
x = 1,143,061,649.36
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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.