Finding the Fourth Proportional to 1,124,040,415.06, 1,551,194,137 and 615,394,641.81
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Solution
The fourth proportional to 1,124,040,415.06, 1,551,194,137 and 615,394,641.81 is: 849,254,659.82
Step by Step Solution
- Step 1: Write the proportion equation
1,124,040,415.06 : 1,551,194,137 = 615,394,641.81 : x - Step 2: Convert to fraction form
1,124,040,415.06/1,551,194,137 = 615,394,641.81/x - Step 3: Cross multiply
1,124,040,415.06x = 1,551,194,137 × 615,394,641.81 - Step 4: Simplify right side
1,124,040,415.06x = 954,596,560,316,887,040 - Step 5: Solve for x
x = 954,596,560,316,887,040/1,124,040,415.06 - Step 6: Final answer
x = 849,254,659.82
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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.