Finding the Fourth Proportional to 1,426,702,986.40, 2,138,038,940.40 and 1,055,339,888.80
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Solution
The fourth proportional to 1,426,702,986.40, 2,138,038,940.40 and 1,055,339,888.80 is: 1,581,518,927.99
Step by Step Solution
- Step 1: Write the proportion equation
1,426,702,986.40 : 2,138,038,940.40 = 1,055,339,888.80 : x - Step 2: Convert to fraction form
1,426,702,986.40/2,138,038,940.40 = 1,055,339,888.80/x - Step 3: Cross multiply
1,426,702,986.40x = 2,138,038,940.40 × 1,055,339,888.80 - Step 4: Simplify right side
1,426,702,986.40x = 2,256,357,777,611,805,952 - Step 5: Solve for x
x = 2,256,357,777,611,805,952/1,426,702,986.40 - Step 6: Final answer
x = 1,581,518,927.99
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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.