Finding the Fourth Proportional to 112,581,739.14, 155,282,708.34 and 103,319,220.06
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Solution
The fourth proportional to 112,581,739.14, 155,282,708.34 and 103,319,220.06 is: 142,507,021.45
Step by Step Solution
- Step 1: Write the proportion equation
112,581,739.14 : 155,282,708.34 = 103,319,220.06 : x - Step 2: Convert to fraction form
112,581,739.14/155,282,708.34 = 103,319,220.06/x - Step 3: Cross multiply
112,581,739.14x = 155,282,708.34 × 103,319,220.06 - Step 4: Simplify right side
112,581,739.14x = 16,043,688,314,493,258 - Step 5: Solve for x
x = 16,043,688,314,493,258/112,581,739.14 - Step 6: Final answer
x = 142,507,021.45
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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.