Finding the Fourth Proportional to 257,554,065.99, 355,517,061.58 and 153,131,888.21
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Solution
The fourth proportional to 257,554,065.99, 355,517,061.58 and 153,131,888.21 is: 211,376,973.29
Step by Step Solution
- Step 1: Write the proportion equation
257,554,065.99 : 355,517,061.58 = 153,131,888.21 : x - Step 2: Convert to fraction form
257,554,065.99/355,517,061.58 = 153,131,888.21/x - Step 3: Cross multiply
257,554,065.99x = 355,517,061.58 × 153,131,888.21 - Step 4: Simplify right side
257,554,065.99x = 54,440,998,928,169,480 - Step 5: Solve for x
x = 54,440,998,928,169,480/257,554,065.99 - Step 6: Final answer
x = 211,376,973.29
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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.