Finding the Fourth Proportional to 1,495,909,577.20, 2,243,864,365.80 and 405,392,645.20
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Solution
The fourth proportional to 1,495,909,577.20, 2,243,864,365.80 and 405,392,645.20 is: 608,088,967.80
Step by Step Solution
- Step 1: Write the proportion equation
1,495,909,577.20 : 2,243,864,365.80 = 405,392,645.20 : x - Step 2: Convert to fraction form
1,495,909,577.20/2,243,864,365.80 = 405,392,645.20/x - Step 3: Cross multiply
1,495,909,577.20x = 2,243,864,365.80 × 405,392,645.20 - Step 4: Simplify right side
1,495,909,577.20x = 909,646,110,721,682,432 - Step 5: Solve for x
x = 909,646,110,721,682,432/1,495,909,577.20 - Step 6: Final answer
x = 608,088,967.80
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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.