Finding the Fourth Proportional to 1,113,348,709.48, 1,670,012,430.36 and 676,769,932.84
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Solution
The fourth proportional to 1,113,348,709.48, 1,670,012,430.36 and 676,769,932.84 is: 1,015,148,435.27
Step by Step Solution
- Step 1: Write the proportion equation
1,113,348,709.48 : 1,670,012,430.36 = 676,769,932.84 : x - Step 2: Convert to fraction form
1,113,348,709.48/1,670,012,430.36 = 676,769,932.84/x - Step 3: Cross multiply
1,113,348,709.48x = 1,670,012,430.36 × 676,769,932.84 - Step 4: Simplify right side
1,113,348,709.48x = 1,130,214,200,336,702,336 - Step 5: Solve for x
x = 1,130,214,200,336,702,336/1,113,348,709.48 - Step 6: Final answer
x = 1,015,148,435.27
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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.