Finding the Fourth Proportional to 106,163,030.16, 146,429,515.53 and 70,863,037.65
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Solution
The fourth proportional to 106,163,030.16, 146,429,515.53 and 70,863,037.65 is: 97,740,618.90
Step by Step Solution
- Step 1: Write the proportion equation
106,163,030.16 : 146,429,515.53 = 70,863,037.65 : x - Step 2: Convert to fraction form
106,163,030.16/146,429,515.53 = 70,863,037.65/x - Step 3: Cross multiply
106,163,030.16x = 146,429,515.53 × 70,863,037.65 - Step 4: Simplify right side
106,163,030.16x = 10,376,440,272,073,650 - Step 5: Solve for x
x = 10,376,440,272,073,650/106,163,030.16 - Step 6: Final answer
x = 97,740,618.90
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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.