Finding the Fourth Proportional to 83,943,498.20, 115,842,262.90 and 48,668,158.74
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Solution
The fourth proportional to 83,943,498.20, 115,842,262.90 and 48,668,158.74 is: 67,162,195.53
Step by Step Solution
- Step 1: Write the proportion equation
83,943,498.20 : 115,842,262.90 = 48,668,158.74 : x - Step 2: Convert to fraction form
83,943,498.20/115,842,262.90 = 48,668,158.74/x - Step 3: Cross multiply
83,943,498.20x = 115,842,262.90 × 48,668,158.74 - Step 4: Simplify right side
83,943,498.20x = 5,637,829,639,618,013 - Step 5: Solve for x
x = 5,637,829,639,618,013/83,943,498.20 - Step 6: Final answer
x = 67,162,195.53
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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.