Finding the Fourth Proportional to 832,854,541.44, 1,241,835,878.47 and 809,972,518.80
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Solution
The fourth proportional to 832,854,541.44, 1,241,835,878.47 and 809,972,518.80 is: 1,207,717,415.67
Step by Step Solution
- Step 1: Write the proportion equation
832,854,541.44 : 1,241,835,878.47 = 809,972,518.80 : x - Step 2: Convert to fraction form
832,854,541.44/1,241,835,878.47 = 809,972,518.80/x - Step 3: Cross multiply
832,854,541.44x = 1,241,835,878.47 × 809,972,518.80 - Step 4: Simplify right side
832,854,541.44x = 1,005,852,934,420,556,544 - Step 5: Solve for x
x = 1,005,852,934,420,556,544/832,854,541.44 - Step 6: Final answer
x = 1,207,717,415.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.