Finding the Fourth Proportional to 3,130,346,271.23, 4,319,819,739.20 and 1,720,620,097.31
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Solution
The fourth proportional to 3,130,346,271.23, 4,319,819,739.20 and 1,720,620,097.31 is: 2,374,423,790.85
Step by Step Solution
- Step 1: Write the proportion equation
3,130,346,271.23 : 4,319,819,739.20 = 1,720,620,097.31 : x - Step 2: Convert to fraction form
3,130,346,271.23/4,319,819,739.20 = 1,720,620,097.31/x - Step 3: Cross multiply
3,130,346,271.23x = 4,319,819,739.20 × 1,720,620,097.31 - Step 4: Simplify right side
3,130,346,271.23x = 7,432,768,660,015,358,976 - Step 5: Solve for x
x = 7,432,768,660,015,358,976/3,130,346,271.23 - Step 6: Final answer
x = 2,374,423,790.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.