Finding the Fourth Proportional to 1,124,042,019.26, 1,551,196,358.99 and 615,396,251.48
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Solution
The fourth proportional to 1,124,042,019.26, 1,551,196,358.99 and 615,396,251.48 is: 849,256,885.66
Step by Step Solution
- Step 1: Write the proportion equation
1,124,042,019.26 : 1,551,196,358.99 = 615,396,251.48 : x - Step 2: Convert to fraction form
1,124,042,019.26/1,551,196,358.99 = 615,396,251.48/x - Step 3: Cross multiply
1,124,042,019.26x = 1,551,196,358.99 × 615,396,251.48 - Step 4: Simplify right side
1,124,042,019.26x = 954,600,424,621,037,440 - Step 5: Solve for x
x = 954,600,424,621,037,440/1,124,042,019.26 - Step 6: Final answer
x = 849,256,885.66
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Double scale
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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.