Finding the Fourth Proportional to 101,185,983.09, 139,637,102.30 and 54,776,237.01
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Solution
The fourth proportional to 101,185,983.09, 139,637,102.30 and 54,776,237.01 is: 75,591,448.32
Step by Step Solution
- Step 1: Write the proportion equation
101,185,983.09 : 139,637,102.30 = 54,776,237.01 : x - Step 2: Convert to fraction form
101,185,983.09/139,637,102.30 = 54,776,237.01/x - Step 3: Cross multiply
101,185,983.09x = 139,637,102.30 × 54,776,237.01 - Step 4: Simplify right side
101,185,983.09x = 7,648,795,011,475,747 - Step 5: Solve for x
x = 7,648,795,011,475,747/101,185,983.09 - Step 6: Final answer
x = 75,591,448.32
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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.