Finding the Fourth Proportional to 97,255,579.20, 145,883,368.80 and 74,580,763.20
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Solution
The fourth proportional to 97,255,579.20, 145,883,368.80 and 74,580,763.20 is: 111,871,144.80
Step by Step Solution
- Step 1: Write the proportion equation
97,255,579.20 : 145,883,368.80 = 74,580,763.20 : x - Step 2: Convert to fraction form
97,255,579.20/145,883,368.80 = 74,580,763.20/x - Step 3: Cross multiply
97,255,579.20x = 145,883,368.80 × 74,580,763.20 - Step 4: Simplify right side
97,255,579.20x = 10,880,092,983,291,070 - Step 5: Solve for x
x = 10,880,092,983,291,070/97,255,579.20 - Step 6: Final answer
x = 111,871,144.80
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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.