Finding the Fourth Proportional to 100,525,994.51, 138,717,697.52 and 56,470,599.95
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Solution
The fourth proportional to 100,525,994.51, 138,717,697.52 and 56,470,599.95 is: 77,924,835.67
Step by Step Solution
- Step 1: Write the proportion equation
100,525,994.51 : 138,717,697.52 = 56,470,599.95 : x - Step 2: Convert to fraction form
100,525,994.51/138,717,697.52 = 56,470,599.95/x - Step 3: Cross multiply
100,525,994.51x = 138,717,697.52 × 56,470,599.95 - Step 4: Simplify right side
100,525,994.51x = 7,833,471,602,354,674 - Step 5: Solve for x
x = 7,833,471,602,354,674/100,525,994.51 - Step 6: Final answer
x = 77,924,835.67
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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.