Finding the Fourth Proportional to 1,124,406,077.10, 1,686,609,115.65 and 664,107,312.30
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Solution
The fourth proportional to 1,124,406,077.10, 1,686,609,115.65 and 664,107,312.30 is: 996,160,968.45
Step by Step Solution
- Step 1: Write the proportion equation
1,124,406,077.10 : 1,686,609,115.65 = 664,107,312.30 : x - Step 2: Convert to fraction form
1,124,406,077.10/1,686,609,115.65 = 664,107,312.30/x - Step 3: Cross multiply
1,124,406,077.10x = 1,686,609,115.65 × 664,107,312.30 - Step 4: Simplify right side
1,124,406,077.10x = 1,120,089,446,695,001,344 - Step 5: Solve for x
x = 1,120,089,446,695,001,344/1,124,406,077.10 - Step 6: Final answer
x = 996,160,968.45
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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.