Finding the Fourth Proportional to 1,705,990,415.80, 2,559,929,882.70 and 832,599,018.76
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Solution
The fourth proportional to 1,705,990,415.80, 2,559,929,882.70 and 832,599,018.76 is: 1,249,359,368.43
Step by Step Solution
- Step 1: Write the proportion equation
1,705,990,415.80 : 2,559,929,882.70 = 832,599,018.76 : x - Step 2: Convert to fraction form
1,705,990,415.80/2,559,929,882.70 = 832,599,018.76/x - Step 3: Cross multiply
1,705,990,415.80x = 2,559,929,882.70 × 832,599,018.76 - Step 4: Simplify right side
1,705,990,415.80x = 2,131,395,108,430,421,760 - Step 5: Solve for x
x = 2,131,395,108,430,421,760/1,705,990,415.80 - Step 6: Final answer
x = 1,249,359,368.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.