Finding the Fourth Proportional to 1,928,430,434.63, 2,661,256,345.46 and 1,070,122,634.43
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Solution
The fourth proportional to 1,928,430,434.63, 2,661,256,345.46 and 1,070,122,634.43 is: 1,476,781,635.55
Step by Step Solution
- Step 1: Write the proportion equation
1,928,430,434.63 : 2,661,256,345.46 = 1,070,122,634.43 : x - Step 2: Convert to fraction form
1,928,430,434.63/2,661,256,345.46 = 1,070,122,634.43/x - Step 3: Cross multiply
1,928,430,434.63x = 2,661,256,345.46 × 1,070,122,634.43 - Step 4: Simplify right side
1,928,430,434.63x = 2,847,870,651,291,858,432 - Step 5: Solve for x
x = 2,847,870,651,291,858,432/1,928,430,434.63 - Step 6: Final answer
x = 1,476,781,635.55
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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.