Finding the Fourth Proportional to 1,609,632,124.40, 2,414,224,237.80 and 519,225,417.20
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Solution
The fourth proportional to 1,609,632,124.40, 2,414,224,237.80 and 519,225,417.20 is: 778,765,885.75
Step by Step Solution
- Step 1: Write the proportion equation
1,609,632,124.40 : 2,414,224,237.80 = 519,225,417.20 : x - Step 2: Convert to fraction form
1,609,632,124.40/2,414,224,237.80 = 519,225,417.20/x - Step 3: Cross multiply
1,609,632,124.40x = 2,414,224,237.80 × 519,225,417.20 - Step 4: Simplify right side
1,609,632,124.40x = 1,253,526,587,086,056,960 - Step 5: Solve for x
x = 1,253,526,587,086,056,960/1,609,632,124.40 - Step 6: Final answer
x = 778,765,885.75
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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.