Finding the Fourth Proportional to 1,126,167,870.66, 1,554,203,693.97 and 624,533,756.10
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Solution
The fourth proportional to 1,126,167,870.66, 1,554,203,693.97 and 624,533,756.10 is: 861,907,621.44
Step by Step Solution
- Step 1: Write the proportion equation
1,126,167,870.66 : 1,554,203,693.97 = 624,533,756.10 : x - Step 2: Convert to fraction form
1,126,167,870.66/1,554,203,693.97 = 624,533,756.10/x - Step 3: Cross multiply
1,126,167,870.66x = 1,554,203,693.97 × 624,533,756.10 - Step 4: Simplify right side
1,126,167,870.66x = 970,652,670,739,579,136 - Step 5: Solve for x
x = 970,652,670,739,579,136/1,126,167,870.66 - Step 6: Final answer
x = 861,907,621.44
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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.