Finding the Fourth Proportional to 220,143,989.36, 330,216,045.57 and 64,697,789.07
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Solution
The fourth proportional to 220,143,989.36, 330,216,045.57 and 64,697,789.07 is: 97,046,701.69
Step by Step Solution
- Step 1: Write the proportion equation
220,143,989.36 : 330,216,045.57 = 64,697,789.07 : x - Step 2: Convert to fraction form
220,143,989.36/330,216,045.57 = 64,697,789.07/x - Step 3: Cross multiply
220,143,989.36x = 330,216,045.57 × 64,697,789.07 - Step 4: Simplify right side
220,143,989.36x = 21,364,248,063,817,368 - Step 5: Solve for x
x = 21,364,248,063,817,368/220,143,989.36 - Step 6: Final answer
x = 97,046,701.69
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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.