Finding the Fourth Proportional to 751,303,339,931.90, 1,036,741,709,781.70 and 421,642,709,934.84
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Solution
The fourth proportional to 751,303,339,931.90, 1,036,741,709,781.70 and 421,642,709,934.84 is: 581,835,006,955.32
Step by Step Solution
- Step 1: Write the proportion equation
751,303,339,931.90 : 1,036,741,709,781.70 = 421,642,709,934.84 : x - Step 2: Convert to fraction form
751,303,339,931.90/1,036,741,709,781.70 = 421,642,709,934.84/x - Step 3: Cross multiply
751,303,339,931.90x = 1,036,741,709,781.70 × 421,642,709,934.84 - Step 4: Simplify right side
751,303,339,931.90x = 437,134,584,014,835,382,484,992 - Step 5: Solve for x
x = 437,134,584,014,835,382,484,992/751,303,339,931.90 - Step 6: Final answer
x = 581,835,006,955.32
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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.