Finding the Fourth Proportional to 180,559,128.86, 249,247,873.71 and 121,901,246.47
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Solution
The fourth proportional to 180,559,128.86, 249,247,873.71 and 121,901,246.47 is: 168,275,216.42
Step by Step Solution
- Step 1: Write the proportion equation
180,559,128.86 : 249,247,873.71 = 121,901,246.47 : x - Step 2: Convert to fraction form
180,559,128.86/249,247,873.71 = 121,901,246.47/x - Step 3: Cross multiply
180,559,128.86x = 249,247,873.71 × 121,901,246.47 - Step 4: Simplify right side
180,559,128.86x = 30,383,626,484,623,024 - Step 5: Solve for x
x = 30,383,626,484,623,024/180,559,128.86 - Step 6: Final answer
x = 168,275,216.42
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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.