Finding the Fourth Proportional to 86,947,774.20, 130,437,407.70 and 43,708,159.80
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Solution
The fourth proportional to 86,947,774.20, 130,437,407.70 and 43,708,159.80 is: 65,570,155.33
Step by Step Solution
- Step 1: Write the proportion equation
86,947,774.20 : 130,437,407.70 = 43,708,159.80 : x - Step 2: Convert to fraction form
86,947,774.20/130,437,407.70 = 43,708,159.80/x - Step 3: Cross multiply
86,947,774.20x = 130,437,407.70 × 43,708,159.80 - Step 4: Simplify right side
86,947,774.20x = 5,701,179,059,649,350 - Step 5: Solve for x
x = 5,701,179,059,649,350/86,947,774.20 - Step 6: Final answer
x = 65,570,155.33
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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.