Finding the Fourth Proportional to 185,679,029.80, 278,518,544.70 and 99,585,587.80
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Solution
The fourth proportional to 185,679,029.80, 278,518,544.70 and 99,585,587.80 is: 149,378,381.70
Step by Step Solution
- Step 1: Write the proportion equation
185,679,029.80 : 278,518,544.70 = 99,585,587.80 : x - Step 2: Convert to fraction form
185,679,029.80/278,518,544.70 = 99,585,587.80/x - Step 3: Cross multiply
185,679,029.80x = 278,518,544.70 × 99,585,587.80 - Step 4: Simplify right side
185,679,029.80x = 27,736,432,987,150,072 - Step 5: Solve for x
x = 27,736,432,987,150,072/185,679,029.80 - Step 6: Final answer
x = 149,378,381.70
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1.5x scale
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.