Finding the Fourth Proportional to 125,478,688,734.56, 188,254,961,011.28 and 40,486,888,833.68
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Solution
The fourth proportional to 125,478,688,734.56, 188,254,961,011.28 and 40,486,888,833.68 is: 60,742,248,390.69
Step by Step Solution
- Step 1: Write the proportion equation
125,478,688,734.56 : 188,254,961,011.28 = 40,486,888,833.68 : x - Step 2: Convert to fraction form
125,478,688,734.56/188,254,961,011.28 = 40,486,888,833.68/x - Step 3: Cross multiply
125,478,688,734.56x = 188,254,961,011.28 × 40,486,888,833.68 - Step 4: Simplify right side
125,478,688,734.56x = 7,621,857,678,852,455,661,568 - Step 5: Solve for x
x = 7,621,857,678,852,455,661,568/125,478,688,734.56 - Step 6: Final answer
x = 60,742,248,390.69
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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.