Finding the Fourth Proportional to 130,496,279.28, 180,096,341.40 and 71,769,292.08
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Solution
The fourth proportional to 130,496,279.28, 180,096,341.40 and 71,769,292.08 is: 99,047,934.54
Step by Step Solution
- Step 1: Write the proportion equation
130,496,279.28 : 180,096,341.40 = 71,769,292.08 : x - Step 2: Convert to fraction form
130,496,279.28/180,096,341.40 = 71,769,292.08/x - Step 3: Cross multiply
130,496,279.28x = 180,096,341.40 × 71,769,292.08 - Step 4: Simplify right side
130,496,279.28x = 12,925,386,928,475,996 - Step 5: Solve for x
x = 12,925,386,928,475,996/130,496,279.28 - Step 6: Final answer
x = 99,047,934.54
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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.