Finding the Fourth Proportional to 130,506,761.92, 180,048,358.76 and 74,722,368.96
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Solution
The fourth proportional to 130,506,761.92, 180,048,358.76 and 74,722,368.96 is: 103,087,684.47
Step by Step Solution
- Step 1: Write the proportion equation
130,506,761.92 : 180,048,358.76 = 74,722,368.96 : x - Step 2: Convert to fraction form
130,506,761.92/180,048,358.76 = 74,722,368.96/x - Step 3: Cross multiply
130,506,761.92x = 180,048,358.76 × 74,722,368.96 - Step 4: Simplify right side
130,506,761.92x = 13,453,639,893,907,166 - Step 5: Solve for x
x = 13,453,639,893,907,166/130,506,761.92 - Step 6: Final answer
x = 103,087,684.47
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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.