Finding the Fourth Proportional to 1,513,303,686.90, 2,269,955,530.35 and 929,143,739.70
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Solution
The fourth proportional to 1,513,303,686.90, 2,269,955,530.35 and 929,143,739.70 is: 1,393,715,609.55
Step by Step Solution
- Step 1: Write the proportion equation
1,513,303,686.90 : 2,269,955,530.35 = 929,143,739.70 : x - Step 2: Convert to fraction form
1,513,303,686.90/2,269,955,530.35 = 929,143,739.70/x - Step 3: Cross multiply
1,513,303,686.90x = 2,269,955,530.35 × 929,143,739.70 - Step 4: Simplify right side
1,513,303,686.90x = 2,109,114,970,422,095,872 - Step 5: Solve for x
x = 2,109,114,970,422,095,872/1,513,303,686.90 - Step 6: Final answer
x = 1,393,715,609.55
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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.