Finding the Fourth Proportional to 48,516,572.78, 72,403,546.98 and 43,340,877.21
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Solution
The fourth proportional to 48,516,572.78, 72,403,546.98 and 43,340,877.21 is: 64,679,614.80
Step by Step Solution
- Step 1: Write the proportion equation
48,516,572.78 : 72,403,546.98 = 43,340,877.21 : x - Step 2: Convert to fraction form
48,516,572.78/72,403,546.98 = 43,340,877.21/x - Step 3: Cross multiply
48,516,572.78x = 72,403,546.98 × 43,340,877.21 - Step 4: Simplify right side
48,516,572.78x = 3,138,033,238,889,693.50 - Step 5: Solve for x
x = 3,138,033,238,889,693.50/48,516,572.78 - Step 6: Final answer
x = 64,679,614.80
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.