Finding the Fourth Proportional to 100,101,014.58, 138,133,305.98 and 55,444,339.61
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Solution
The fourth proportional to 100,101,014.58, 138,133,305.98 and 55,444,339.61 is: 76,509,813.21
Step by Step Solution
- Step 1: Write the proportion equation
100,101,014.58 : 138,133,305.98 = 55,444,339.61 : x - Step 2: Convert to fraction form
100,101,014.58/138,133,305.98 = 55,444,339.61/x - Step 3: Cross multiply
100,101,014.58x = 138,133,305.98 × 55,444,339.61 - Step 4: Simplify right side
100,101,014.58x = 7,658,709,927,239,275 - Step 5: Solve for x
x = 7,658,709,927,239,275/100,101,014.58 - Step 6: Final answer
x = 76,509,813.21
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1.5x scale
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.