Finding the Fourth Proportional to 1,660,615,373.41, 2,291,697,044.99 and 918,107,265.85
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Solution
The fourth proportional to 1,660,615,373.41, 2,291,697,044.99 and 918,107,265.85 is: 1,267,014,470.55
Step by Step Solution
- Step 1: Write the proportion equation
1,660,615,373.41 : 2,291,697,044.99 = 918,107,265.85 : x - Step 2: Convert to fraction form
1,660,615,373.41/2,291,697,044.99 = 918,107,265.85/x - Step 3: Cross multiply
1,660,615,373.41x = 2,291,697,044.99 × 918,107,265.85 - Step 4: Simplify right side
1,660,615,373.41x = 2,104,023,708,128,859,136 - Step 5: Solve for x
x = 2,104,023,708,128,859,136/1,660,615,373.41 - Step 6: Final answer
x = 1,267,014,470.55
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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.