Finding the Fourth Proportional to 1,201,639,291.48, 1,657,733,990.70 and 725,063,835.96
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Solution
The fourth proportional to 1,201,639,291.48, 1,657,733,990.70 and 725,063,835.96 is: 1,000,269,361.05
Step by Step Solution
- Step 1: Write the proportion equation
1,201,639,291.48 : 1,657,733,990.70 = 725,063,835.96 : x - Step 2: Convert to fraction form
1,201,639,291.48/1,657,733,990.70 = 725,063,835.96/x - Step 3: Cross multiply
1,201,639,291.48x = 1,657,733,990.70 × 725,063,835.96 - Step 4: Simplify right side
1,201,639,291.48x = 1,201,962,966,298,221,056 - Step 5: Solve for x
x = 1,201,962,966,298,221,056/1,201,639,291.48 - Step 6: Final answer
x = 1,000,269,361.05
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.