Finding the Fourth Proportional to 1,513,303,754.40, 2,269,955,631.60 and 929,143,807.20
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Solution
The fourth proportional to 1,513,303,754.40, 2,269,955,631.60 and 929,143,807.20 is: 1,393,715,710.80
Step by Step Solution
- Step 1: Write the proportion equation
1,513,303,754.40 : 2,269,955,631.60 = 929,143,807.20 : x - Step 2: Convert to fraction form
1,513,303,754.40/2,269,955,631.60 = 929,143,807.20/x - Step 3: Cross multiply
1,513,303,754.40x = 2,269,955,631.60 × 929,143,807.20 - Step 4: Simplify right side
1,513,303,754.40x = 2,109,115,217,719,904,768 - Step 5: Solve for x
x = 2,109,115,217,719,904,768/1,513,303,754.40 - Step 6: Final answer
x = 1,393,715,710.80
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1.5x scale
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.