Finding the Fourth Proportional to 1,121,509,296.64, 1,679,516,839.68 and 926,225,943.04
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Solution
The fourth proportional to 1,121,509,296.64, 1,679,516,839.68 and 926,225,943.04 is: 1,387,070,150.33
Step by Step Solution
- Step 1: Write the proportion equation
1,121,509,296.64 : 1,679,516,839.68 = 926,225,943.04 : x - Step 2: Convert to fraction form
1,121,509,296.64/1,679,516,839.68 = 926,225,943.04/x - Step 3: Cross multiply
1,121,509,296.64x = 1,679,516,839.68 × 926,225,943.04 - Step 4: Simplify right side
1,121,509,296.64x = 1,555,612,068,684,168,448 - Step 5: Solve for x
x = 1,555,612,068,684,168,448/1,121,509,296.64 - Step 6: Final answer
x = 1,387,070,150.33
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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.