Finding the Fourth Proportional to 70,983,231.58, 97,961,395.71 and 40,032,107.74
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Solution
The fourth proportional to 70,983,231.58, 97,961,395.71 and 40,032,107.74 is: 55,246,866.90
Step by Step Solution
- Step 1: Write the proportion equation
70,983,231.58 : 97,961,395.71 = 40,032,107.74 : x - Step 2: Convert to fraction form
70,983,231.58/97,961,395.71 = 40,032,107.74/x - Step 3: Cross multiply
70,983,231.58x = 97,961,395.71 × 40,032,107.74 - Step 4: Simplify right side
70,983,231.58x = 3,921,601,147,423,493.50 - Step 5: Solve for x
x = 3,921,601,147,423,493.50/70,983,231.58 - Step 6: Final answer
x = 55,246,866.90
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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.