Finding the Fourth Proportional to 843,079,936.08, 1,163,572,068.67 and 485,779,307.25
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Solution
The fourth proportional to 843,079,936.08, 1,163,572,068.67 and 485,779,307.25 is: 670,445,599.84
Step by Step Solution
- Step 1: Write the proportion equation
843,079,936.08 : 1,163,572,068.67 = 485,779,307.25 : x - Step 2: Convert to fraction form
843,079,936.08/1,163,572,068.67 = 485,779,307.25/x - Step 3: Cross multiply
843,079,936.08x = 1,163,572,068.67 × 485,779,307.25 - Step 4: Simplify right side
843,079,936.08x = 565,239,233,457,111,040 - Step 5: Solve for x
x = 565,239,233,457,111,040/843,079,936.08 - Step 6: Final answer
x = 670,445,599.84
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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.