Finding the Fourth Proportional to 18,718,316,977.60, 28,077,473,761.44 and 8,237,533,394.08
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Solution
The fourth proportional to 18,718,316,977.60, 28,077,473,761.44 and 8,237,533,394.08 is: 12,356,299,340.80
Step by Step Solution
- Step 1: Write the proportion equation
18,718,316,977.60 : 28,077,473,761.44 = 8,237,533,394.08 : x - Step 2: Convert to fraction form
18,718,316,977.60/28,077,473,761.44 = 8,237,533,394.08/x - Step 3: Cross multiply
18,718,316,977.60x = 28,077,473,761.44 × 8,237,533,394.08 - Step 4: Simplify right side
18,718,316,977.60x = 231,289,127,731,266,977,792 - Step 5: Solve for x
x = 231,289,127,731,266,977,792/18,718,316,977.60 - Step 6: Final answer
x = 12,356,299,340.80
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1.5x scale
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.