Finding the Fourth Proportional to 83,820,337.20, 125,730,505.80 and 73,742,641.20
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Solution
The fourth proportional to 83,820,337.20, 125,730,505.80 and 73,742,641.20 is: 110,613,961.80
Step by Step Solution
- Step 1: Write the proportion equation
83,820,337.20 : 125,730,505.80 = 73,742,641.20 : x - Step 2: Convert to fraction form
83,820,337.20/125,730,505.80 = 73,742,641.20/x - Step 3: Cross multiply
83,820,337.20x = 125,730,505.80 × 73,742,641.20 - Step 4: Simplify right side
83,820,337.20x = 9,271,699,577,103,920 - Step 5: Solve for x
x = 9,271,699,577,103,920/83,820,337.20 - Step 6: Final answer
x = 110,613,961.80
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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.