Finding the Fourth Proportional to 1,130,710,231.20, 1,560,370,732.56 and 635,675,141.28
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Solution
The fourth proportional to 1,130,710,231.20, 1,560,370,732.56 and 635,675,141.28 is: 877,226,417.96
Step by Step Solution
- Step 1: Write the proportion equation
1,130,710,231.20 : 1,560,370,732.56 = 635,675,141.28 : x - Step 2: Convert to fraction form
1,130,710,231.20/1,560,370,732.56 = 635,675,141.28/x - Step 3: Cross multiply
1,130,710,231.20x = 1,560,370,732.56 × 635,675,141.28 - Step 4: Simplify right side
1,130,710,231.20x = 991,888,885,869,255,040 - Step 5: Solve for x
x = 991,888,885,869,255,040/1,130,710,231.20 - Step 6: Final answer
x = 877,226,417.96
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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.