Finding the Fourth Proportional to 3,765,278,736.60, 5,648,130,681.30 and 1,145,168,318.40
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Solution
The fourth proportional to 3,765,278,736.60, 5,648,130,681.30 and 1,145,168,318.40 is: 1,717,817,130.39
Step by Step Solution
- Step 1: Write the proportion equation
3,765,278,736.60 : 5,648,130,681.30 = 1,145,168,318.40 : x - Step 2: Convert to fraction form
3,765,278,736.60/5,648,130,681.30 = 1,145,168,318.40/x - Step 3: Cross multiply
3,765,278,736.60x = 5,648,130,681.30 × 1,145,168,318.40 - Step 4: Simplify right side
3,765,278,736.60x = 6,468,060,314,407,768,064 - Step 5: Solve for x
x = 6,468,060,314,407,768,064/3,765,278,736.60 - Step 6: Final answer
x = 1,717,817,130.39
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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.