Finding the Fourth Proportional to 1,177,429,909.26, 1,624,887,934.49 and 648,827,946.03
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Solution
The fourth proportional to 1,177,429,909.26, 1,624,887,934.49 and 648,827,946.03 is: 895,401,664.91
Step by Step Solution
- Step 1: Write the proportion equation
1,177,429,909.26 : 1,624,887,934.49 = 648,827,946.03 : x - Step 2: Convert to fraction form
1,177,429,909.26/1,624,887,934.49 = 648,827,946.03/x - Step 3: Cross multiply
1,177,429,909.26x = 1,624,887,934.49 × 648,827,946.03 - Step 4: Simplify right side
1,177,429,909.26x = 1,054,272,701,064,075,904 - Step 5: Solve for x
x = 1,054,272,701,064,075,904/1,177,429,909.26 - Step 6: Final answer
x = 895,401,664.91
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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.