Finding the Fourth Proportional to 1,594,403,998.80, 2,391,605,998.20 and 905,656,462.80
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Solution
The fourth proportional to 1,594,403,998.80, 2,391,605,998.20 and 905,656,462.80 is: 1,358,484,694.20
Step by Step Solution
- Step 1: Write the proportion equation
1,594,403,998.80 : 2,391,605,998.20 = 905,656,462.80 : x - Step 2: Convert to fraction form
1,594,403,998.80/2,391,605,998.20 = 905,656,462.80/x - Step 3: Cross multiply
1,594,403,998.80x = 2,391,605,998.20 × 905,656,462.80 - Step 4: Simplify right side
1,594,403,998.80x = 2,165,973,428,741,074,944 - Step 5: Solve for x
x = 2,165,973,428,741,074,944/1,594,403,998.80 - Step 6: Final answer
x = 1,358,484,694.20
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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.