Finding the Fourth Proportional to 1,580,160,210.48, 2,180,620,332 and 945,080,691.36
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Solution
The fourth proportional to 1,580,160,210.48, 2,180,620,332 and 945,080,691.36 is: 1,304,210,900.45
Step by Step Solution
- Step 1: Write the proportion equation
1,580,160,210.48 : 2,180,620,332 = 945,080,691.36 : x - Step 2: Convert to fraction form
1,580,160,210.48/2,180,620,332 = 945,080,691.36/x - Step 3: Cross multiply
1,580,160,210.48x = 2,180,620,332 × 945,080,691.36 - Step 4: Simplify right side
1,580,160,210.48x = 2,060,862,170,960,232,704 - Step 5: Solve for x
x = 2,060,862,170,960,232,704/1,580,160,210.48 - Step 6: Final answer
x = 1,304,210,900.45
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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.