Finding the Fourth Proportional to 853,570,820.98, 1,177,928,928.21 and 462,430,244.98
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Solution
The fourth proportional to 853,570,820.98, 1,177,928,928.21 and 462,430,244.98 is: 638,154,385.61
Step by Step Solution
- Step 1: Write the proportion equation
853,570,820.98 : 1,177,928,928.21 = 462,430,244.98 : x - Step 2: Convert to fraction form
853,570,820.98/1,177,928,928.21 = 462,430,244.98/x - Step 3: Cross multiply
853,570,820.98x = 1,177,928,928.21 × 462,430,244.98 - Step 4: Simplify right side
853,570,820.98x = 544,709,962,841,179,200 - Step 5: Solve for x
x = 544,709,962,841,179,200/853,570,820.98 - Step 6: Final answer
x = 638,154,385.61
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1.5x scale
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.