Finding the Fourth Proportional to 83,648,985.70, 125,473,478.55 and 66,430,297.30
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Solution
The fourth proportional to 83,648,985.70, 125,473,478.55 and 66,430,297.30 is: 99,645,445.95
Step by Step Solution
- Step 1: Write the proportion equation
83,648,985.70 : 125,473,478.55 = 66,430,297.30 : x - Step 2: Convert to fraction form
83,648,985.70/125,473,478.55 = 66,430,297.30/x - Step 3: Cross multiply
83,648,985.70x = 125,473,478.55 × 66,430,297.30 - Step 4: Simplify right side
83,648,985.70x = 8,335,240,483,341,672 - Step 5: Solve for x
x = 8,335,240,483,341,672/83,648,985.70 - Step 6: Final answer
x = 99,645,445.95
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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.