Finding the Fourth Proportional to 86,935,129.70, 130,119,259.35 and 86,935,129.70
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Solution
The fourth proportional to 86,935,129.70, 130,119,259.35 and 86,935,129.70 is: 130,119,259.35
Step by Step Solution
- Step 1: Write the proportion equation
86,935,129.70 : 130,119,259.35 = 86,935,129.70 : x - Step 2: Convert to fraction form
86,935,129.70/130,119,259.35 = 86,935,129.70/x - Step 3: Cross multiply
86,935,129.70x = 130,119,259.35 × 86,935,129.70 - Step 4: Simplify right side
86,935,129.70x = 11,311,934,688,060,188 - Step 5: Solve for x
x = 11,311,934,688,060,188/86,935,129.70 - Step 6: Final answer
x = 130,119,259.35
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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.