Finding the Fourth Proportional to 73,992,001.80, 110,988,002.70 and 68,953,153.80
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Solution
The fourth proportional to 73,992,001.80, 110,988,002.70 and 68,953,153.80 is: 103,429,730.70
Step by Step Solution
- Step 1: Write the proportion equation
73,992,001.80 : 110,988,002.70 = 68,953,153.80 : x - Step 2: Convert to fraction form
73,992,001.80/110,988,002.70 = 68,953,153.80/x - Step 3: Cross multiply
73,992,001.80x = 110,988,002.70 × 68,953,153.80 - Step 4: Simplify right side
73,992,001.80x = 7,652,972,820,127,915 - Step 5: Solve for x
x = 7,652,972,820,127,915/73,992,001.80 - Step 6: Final answer
x = 103,429,730.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.