Finding the Fourth Proportional to 1,238,311,473.36, 1,708,818,257.86 and 673,798,571.88
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Solution
The fourth proportional to 1,238,311,473.36, 1,708,818,257.86 and 673,798,571.88 is: 929,813,965.64
Step by Step Solution
- Step 1: Write the proportion equation
1,238,311,473.36 : 1,708,818,257.86 = 673,798,571.88 : x - Step 2: Convert to fraction form
1,238,311,473.36/1,708,818,257.86 = 673,798,571.88/x - Step 3: Cross multiply
1,238,311,473.36x = 1,708,818,257.86 × 673,798,571.88 - Step 4: Simplify right side
1,238,311,473.36x = 1,151,399,301,748,537,472 - Step 5: Solve for x
x = 1,151,399,301,748,537,472/1,238,311,473.36 - Step 6: Final answer
x = 929,813,965.64
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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.