Finding the Fourth Proportional to 1,587,260,010.48, 2,191,487,689.80 and 1,419,475,703.28
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Solution
The fourth proportional to 1,587,260,010.48, 2,191,487,689.80 and 1,419,475,703.28 is: 1,959,832,358.38
Step by Step Solution
- Step 1: Write the proportion equation
1,587,260,010.48 : 2,191,487,689.80 = 1,419,475,703.28 : x - Step 2: Convert to fraction form
1,587,260,010.48/2,191,487,689.80 = 1,419,475,703.28/x - Step 3: Cross multiply
1,587,260,010.48x = 2,191,487,689.80 × 1,419,475,703.28 - Step 4: Simplify right side
1,587,260,010.48x = 3,110,763,529,708,317,696 - Step 5: Solve for x
x = 3,110,763,529,708,317,696/1,587,260,010.48 - Step 6: Final answer
x = 1,959,832,358.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.