Finding the Fourth Proportional to 1,918,587,632.80, 2,877,881,449.20 and 1,102,294,256.80
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Solution
The fourth proportional to 1,918,587,632.80, 2,877,881,449.20 and 1,102,294,256.80 is: 1,653,441,385.20
Step by Step Solution
- Step 1: Write the proportion equation
1,918,587,632.80 : 2,877,881,449.20 = 1,102,294,256.80 : x - Step 2: Convert to fraction form
1,918,587,632.80/2,877,881,449.20 = 1,102,294,256.80/x - Step 3: Cross multiply
1,918,587,632.80x = 2,877,881,449.20 × 1,102,294,256.80 - Step 4: Simplify right side
1,918,587,632.80x = 3,172,272,193,204,420,608 - Step 5: Solve for x
x = 3,172,272,193,204,420,608/1,918,587,632.80 - Step 6: Final answer
x = 1,653,441,385.20
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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.