Finding the Fourth Proportional to 1,259,717,664.80, 1,889,576,497.20 and 647,497,632.80
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Solution
The fourth proportional to 1,259,717,664.80, 1,889,576,497.20 and 647,497,632.80 is: 971,246,449.20
Step by Step Solution
- Step 1: Write the proportion equation
1,259,717,664.80 : 1,889,576,497.20 = 647,497,632.80 : x - Step 2: Convert to fraction form
1,259,717,664.80/1,889,576,497.20 = 647,497,632.80/x - Step 3: Cross multiply
1,259,717,664.80x = 1,889,576,497.20 × 647,497,632.80 - Step 4: Simplify right side
1,259,717,664.80x = 1,223,496,308,931,515,648 - Step 5: Solve for x
x = 1,223,496,308,931,515,648/1,259,717,664.80 - Step 6: Final answer
x = 971,246,449.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.