Finding the Fourth Proportional to 1,698,671,331.12, 2,548,151,610.02 and 518,516,889.06
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Solution
The fourth proportional to 1,698,671,331.12, 2,548,151,610.02 and 518,516,889.06 is: 777,819,476.60
Step by Step Solution
- Step 1: Write the proportion equation
1,698,671,331.12 : 2,548,151,610.02 = 518,516,889.06 : x - Step 2: Convert to fraction form
1,698,671,331.12/2,548,151,610.02 = 518,516,889.06/x - Step 3: Cross multiply
1,698,671,331.12x = 2,548,151,610.02 × 518,516,889.06 - Step 4: Simplify right side
1,698,671,331.12x = 1,321,259,645,680,800,768 - Step 5: Solve for x
x = 1,321,259,645,680,800,768/1,698,671,331.12 - Step 6: Final answer
x = 777,819,476.60
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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.