Finding the Fourth Proportional to 72,697,345.08, 100,322,663.58 and 39,657,490.44
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Solution
The fourth proportional to 72,697,345.08, 100,322,663.58 and 39,657,490.44 is: 54,727,515.39
Step by Step Solution
- Step 1: Write the proportion equation
72,697,345.08 : 100,322,663.58 = 39,657,490.44 : x - Step 2: Convert to fraction form
72,697,345.08/100,322,663.58 = 39,657,490.44/x - Step 3: Cross multiply
72,697,345.08x = 100,322,663.58 × 39,657,490.44 - Step 4: Simplify right side
72,697,345.08x = 3,978,545,071,839,186 - Step 5: Solve for x
x = 3,978,545,071,839,186/72,697,345.08 - Step 6: Final answer
x = 54,727,515.39
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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.