Finding the Fourth Proportional to 1,247,140,232.40, 1,748,862,870 and 1,247,140,232.40
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Solution
The fourth proportional to 1,247,140,232.40, 1,748,862,870 and 1,247,140,232.40 is: 1,748,862,870
Step by Step Solution
- Step 1: Write the proportion equation
1,247,140,232.40 : 1,748,862,870 = 1,247,140,232.40 : x - Step 2: Convert to fraction form
1,247,140,232.40/1,748,862,870 = 1,247,140,232.40/x - Step 3: Cross multiply
1,247,140,232.40x = 1,748,862,870 × 1,247,140,232.40 - Step 4: Simplify right side
1,247,140,232.40x = 2,181,077,246,127,531,264 - Step 5: Solve for x
x = 2,181,077,246,127,531,264/1,247,140,232.40 - Step 6: Final answer
x = 1,748,862,870
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.