Finding the Fourth Proportional to 1,758,740,496.58, 2,638,195,584.86 and 578,294,840.80
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Solution
The fourth proportional to 1,758,740,496.58, 2,638,195,584.86 and 578,294,840.80 is: 867,470,157.60
Step by Step Solution
- Step 1: Write the proportion equation
1,758,740,496.58 : 2,638,195,584.86 = 578,294,840.80 : x - Step 2: Convert to fraction form
1,758,740,496.58/2,638,195,584.86 = 578,294,840.80/x - Step 3: Cross multiply
1,758,740,496.58x = 2,638,195,584.86 × 578,294,840.80 - Step 4: Simplify right side
1,758,740,496.58x = 1,525,654,895,742,984,960 - Step 5: Solve for x
x = 1,525,654,895,742,984,960/1,758,740,496.58 - Step 6: Final answer
x = 867,470,157.60
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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.