Finding the Fourth Proportional to 1,046,389,990.80, 1,569,584,986.20 and 523,372,330.65
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Solution
The fourth proportional to 1,046,389,990.80, 1,569,584,986.20 and 523,372,330.65 is: 785,058,495.98
Step by Step Solution
- Step 1: Write the proportion equation
1,046,389,990.80 : 1,569,584,986.20 = 523,372,330.65 : x - Step 2: Convert to fraction form
1,046,389,990.80/1,569,584,986.20 = 523,372,330.65/x - Step 3: Cross multiply
1,046,389,990.80x = 1,569,584,986.20 × 523,372,330.65 - Step 4: Simplify right side
1,046,389,990.80x = 821,477,352,380,742,016 - Step 5: Solve for x
x = 821,477,352,380,742,016/1,046,389,990.80 - Step 6: Final answer
x = 785,058,495.98
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Double scale
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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.