Finding the Fourth Proportional to 1,690,453,143.79, 2,536,069,271.92 and 585,058,013.66
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Solution
The fourth proportional to 1,690,453,143.79, 2,536,069,271.92 and 585,058,013.66 is: 877,721,844.11
Step by Step Solution
- Step 1: Write the proportion equation
1,690,453,143.79 : 2,536,069,271.92 = 585,058,013.66 : x - Step 2: Convert to fraction form
1,690,453,143.79/2,536,069,271.92 = 585,058,013.66/x - Step 3: Cross multiply
1,690,453,143.79x = 2,536,069,271.92 × 585,058,013.66 - Step 4: Simplify right side
1,690,453,143.79x = 1,483,747,650,738,555,136 - Step 5: Solve for x
x = 1,483,747,650,738,555,136/1,690,453,143.79 - Step 6: Final answer
x = 877,721,844.11
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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.