Finding the Fourth Proportional to 130,506,762.92, 180,048,360.14 and 74,722,369.96
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Solution
The fourth proportional to 130,506,762.92, 180,048,360.14 and 74,722,369.96 is: 103,087,685.85
Step by Step Solution
- Step 1: Write the proportion equation
130,506,762.92 : 180,048,360.14 = 74,722,369.96 : x - Step 2: Convert to fraction form
130,506,762.92/180,048,360.14 = 74,722,369.96/x - Step 3: Cross multiply
130,506,762.92x = 180,048,360.14 × 74,722,369.96 - Step 4: Simplify right side
130,506,762.92x = 13,453,640,177,072,396 - Step 5: Solve for x
x = 13,453,640,177,072,396/130,506,762.92 - Step 6: Final answer
x = 103,087,685.85
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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.