Finding the Fourth Proportional to 70,701,661.12, 106,067,756.30 and 21,521,360.18
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Solution
The fourth proportional to 70,701,661.12, 106,067,756.30 and 21,521,360.18 is: 32,286,686.77
Step by Step Solution
- Step 1: Write the proportion equation
70,701,661.12 : 106,067,756.30 = 21,521,360.18 : x - Step 2: Convert to fraction form
70,701,661.12/106,067,756.30 = 21,521,360.18/x - Step 3: Cross multiply
70,701,661.12x = 106,067,756.30 × 21,521,360.18 - Step 4: Simplify right side
70,701,661.12x = 2,282,722,386,709,157.50 - Step 5: Solve for x
x = 2,282,722,386,709,157.50/70,701,661.12 - Step 6: Final answer
x = 32,286,686.77
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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.