Finding the Fourth Proportional to 1,385,851,803.19, 1,912,004,671.01 and 790,708,741.99
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Solution
The fourth proportional to 1,385,851,803.19, 1,912,004,671.01 and 790,708,741.99 is: 1,090,909,435.34
Step by Step Solution
- Step 1: Write the proportion equation
1,385,851,803.19 : 1,912,004,671.01 = 790,708,741.99 : x - Step 2: Convert to fraction form
1,385,851,803.19/1,912,004,671.01 = 790,708,741.99/x - Step 3: Cross multiply
1,385,851,803.19x = 1,912,004,671.01 × 790,708,741.99 - Step 4: Simplify right side
1,385,851,803.19x = 1,511,838,808,084,587,264 - Step 5: Solve for x
x = 1,511,838,808,084,587,264/1,385,851,803.19 - Step 6: Final answer
x = 1,090,909,435.34
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1.5x scale
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.