Finding the Fourth Proportional to 1,024,524,421.60, 1,413,843,393.36 and 554,625,398.56
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Solution
The fourth proportional to 1,024,524,421.60, 1,413,843,393.36 and 554,625,398.56 is: 765,382,883.03
Step by Step Solution
- Step 1: Write the proportion equation
1,024,524,421.60 : 1,413,843,393.36 = 554,625,398.56 : x - Step 2: Convert to fraction form
1,024,524,421.60/1,413,843,393.36 = 554,625,398.56/x - Step 3: Cross multiply
1,024,524,421.60x = 1,413,843,393.36 × 554,625,398.56 - Step 4: Simplify right side
1,024,524,421.60x = 784,153,455,543,712,768 - Step 5: Solve for x
x = 784,153,455,543,712,768/1,024,524,421.60 - Step 6: Final answer
x = 765,382,883.03
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Double scale
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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.