Finding the Fourth Proportional to 1,659,312,044.79, 2,488,645,174.40 and 478,809,529.76
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Solution
The fourth proportional to 1,659,312,044.79, 2,488,645,174.40 and 478,809,529.76 is: 718,121,121.01
Step by Step Solution
- Step 1: Write the proportion equation
1,659,312,044.79 : 2,488,645,174.40 = 478,809,529.76 : x - Step 2: Convert to fraction form
1,659,312,044.79/2,488,645,174.40 = 478,809,529.76/x - Step 3: Cross multiply
1,659,312,044.79x = 2,488,645,174.40 × 478,809,529.76 - Step 4: Simplify right side
1,659,312,044.79x = 1,191,587,025,699,556,352 - Step 5: Solve for x
x = 1,191,587,025,699,556,352/1,659,312,044.79 - Step 6: Final answer
x = 718,121,121.01
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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.