Finding the Fourth Proportional to 788,974,029.70, 1,183,461,044.55 and 329,242,135.30
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Solution
The fourth proportional to 788,974,029.70, 1,183,461,044.55 and 329,242,135.30 is: 493,863,202.95
Step by Step Solution
- Step 1: Write the proportion equation
788,974,029.70 : 1,183,461,044.55 = 329,242,135.30 : x - Step 2: Convert to fraction form
788,974,029.70/1,183,461,044.55 = 329,242,135.30/x - Step 3: Cross multiply
788,974,029.70x = 1,183,461,044.55 × 329,242,135.30 - Step 4: Simplify right side
788,974,029.70x = 389,645,241,352,010,432 - Step 5: Solve for x
x = 389,645,241,352,010,432/788,974,029.70 - Step 6: Final answer
x = 493,863,202.95
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Double scale
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Similar ratio
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1.5x scale
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.