Finding the Fourth Proportional to 1,335,210,739.20, 1,842,701,127.12 and 740,686,905.18
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Solution
The fourth proportional to 1,335,210,739.20, 1,842,701,127.12 and 740,686,905.18 is: 1,022,209,120.21
Step by Step Solution
- Step 1: Write the proportion equation
1,335,210,739.20 : 1,842,701,127.12 = 740,686,905.18 : x - Step 2: Convert to fraction form
1,335,210,739.20/1,842,701,127.12 = 740,686,905.18/x - Step 3: Cross multiply
1,335,210,739.20x = 1,842,701,127.12 × 740,686,905.18 - Step 4: Simplify right side
1,335,210,739.20x = 1,364,864,595,018,210,304 - Step 5: Solve for x
x = 1,364,864,595,018,210,304/1,335,210,739.20 - Step 6: Final answer
x = 1,022,209,120.21
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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.