Finding the Fourth Proportional to 817,751,515.20, 1,226,627,272.80 and 495,265,243.20
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Solution
The fourth proportional to 817,751,515.20, 1,226,627,272.80 and 495,265,243.20 is: 742,897,864.80
Step by Step Solution
- Step 1: Write the proportion equation
817,751,515.20 : 1,226,627,272.80 = 495,265,243.20 : x - Step 2: Convert to fraction form
817,751,515.20/1,226,627,272.80 = 495,265,243.20/x - Step 3: Cross multiply
817,751,515.20x = 1,226,627,272.80 × 495,265,243.20 - Step 4: Simplify right side
817,751,515.20x = 607,505,854,579,044,736 - Step 5: Solve for x
x = 607,505,854,579,044,736/817,751,515.20 - Step 6: Final answer
x = 742,897,864.80
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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.