Finding the Fourth Proportional to 76,623,209.28, 105,742,270.56 and 41,818,132.08
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Solution
The fourth proportional to 76,623,209.28, 105,742,270.56 and 41,818,132.08 is: 57,710,245.74
Step by Step Solution
- Step 1: Write the proportion equation
76,623,209.28 : 105,742,270.56 = 41,818,132.08 : x - Step 2: Convert to fraction form
76,623,209.28/105,742,270.56 = 41,818,132.08/x - Step 3: Cross multiply
76,623,209.28x = 105,742,270.56 × 41,818,132.08 - Step 4: Simplify right side
76,623,209.28x = 4,421,944,236,717,175.50 - Step 5: Solve for x
x = 4,421,944,236,717,175.50/76,623,209.28 - Step 6: Final answer
x = 57,710,245.74
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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.