Finding the Fourth Proportional to 913,899,368.09, 1,370,782,001.79 and 291,947,605.91
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Solution
The fourth proportional to 913,899,368.09, 1,370,782,001.79 and 291,947,605.91 is: 437,899,989.45
Step by Step Solution
- Step 1: Write the proportion equation
913,899,368.09 : 1,370,782,001.79 = 291,947,605.91 : x - Step 2: Convert to fraction form
913,899,368.09/1,370,782,001.79 = 291,947,605.91/x - Step 3: Cross multiply
913,899,368.09x = 1,370,782,001.79 × 291,947,605.91 - Step 4: Simplify right side
913,899,368.09x = 400,196,523,645,394,368 - Step 5: Solve for x
x = 400,196,523,645,394,368/913,899,368.09 - Step 6: Final answer
x = 437,899,989.45
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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.