Finding the Fourth Proportional to 492,811,707.51, 679,971,431.49 and 291,768,754.65
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Solution
The fourth proportional to 492,811,707.51, 679,971,431.49 and 291,768,754.65 is: 402,576,510.95
Step by Step Solution
- Step 1: Write the proportion equation
492,811,707.51 : 679,971,431.49 = 291,768,754.65 : x - Step 2: Convert to fraction form
492,811,707.51/679,971,431.49 = 291,768,754.65/x - Step 3: Cross multiply
492,811,707.51x = 679,971,431.49 × 291,768,754.65 - Step 4: Simplify right side
492,811,707.51x = 198,394,417,763,415,072 - Step 5: Solve for x
x = 198,394,417,763,415,072/492,811,707.51 - Step 6: Final answer
x = 402,576,510.95
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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.