Finding the Fourth Proportional to 1,454,528,126.12, 2,181,792,207.42 and 349,132,980.20
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Solution
The fourth proportional to 1,454,528,126.12, 2,181,792,207.42 and 349,132,980.20 is: 523,699,474.68
Step by Step Solution
- Step 1: Write the proportion equation
1,454,528,126.12 : 2,181,792,207.42 = 349,132,980.20 : x - Step 2: Convert to fraction form
1,454,528,126.12/2,181,792,207.42 = 349,132,980.20/x - Step 3: Cross multiply
1,454,528,126.12x = 2,181,792,207.42 × 349,132,980.20 - Step 4: Simplify right side
1,454,528,126.12x = 761,735,615,553,681,152 - Step 5: Solve for x
x = 761,735,615,553,681,152/1,454,528,126.12 - Step 6: Final answer
x = 523,699,474.68
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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.