Finding the Fourth Proportional to 434,316,781.60, 651,569,650.80 and 143,134,352.80
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Solution
The fourth proportional to 434,316,781.60, 651,569,650.80 and 143,134,352.80 is: 214,732,665.70
Step by Step Solution
- Step 1: Write the proportion equation
434,316,781.60 : 651,569,650.80 = 143,134,352.80 : x - Step 2: Convert to fraction form
434,316,781.60/651,569,650.80 = 143,134,352.80/x - Step 3: Cross multiply
434,316,781.60x = 651,569,650.80 × 143,134,352.80 - Step 4: Simplify right side
434,316,781.60x = 93,262,000,271,380,000 - Step 5: Solve for x
x = 93,262,000,271,380,000/434,316,781.60 - Step 6: Final answer
x = 214,732,665.70
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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.