Finding the Fourth Proportional to 318,864,909.60, 478,297,364.40 and 241,770,535.20
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Solution
The fourth proportional to 318,864,909.60, 478,297,364.40 and 241,770,535.20 is: 362,655,802.80
Step by Step Solution
- Step 1: Write the proportion equation
318,864,909.60 : 478,297,364.40 = 241,770,535.20 : x - Step 2: Convert to fraction form
318,864,909.60/478,297,364.40 = 241,770,535.20/x - Step 3: Cross multiply
318,864,909.60x = 478,297,364.40 × 241,770,535.20 - Step 4: Simplify right side
318,864,909.60x = 115,638,209,775,737,408 - Step 5: Solve for x
x = 115,638,209,775,737,408/318,864,909.60 - Step 6: Final answer
x = 362,655,802.80
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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.