Finding the Fourth Proportional to 708,593,126.20, 1,062,889,689.30 and 605,280,995.80
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Solution
The fourth proportional to 708,593,126.20, 1,062,889,689.30 and 605,280,995.80 is: 907,921,493.70
Step by Step Solution
- Step 1: Write the proportion equation
708,593,126.20 : 1,062,889,689.30 = 605,280,995.80 : x - Step 2: Convert to fraction form
708,593,126.20/1,062,889,689.30 = 605,280,995.80/x - Step 3: Cross multiply
708,593,126.20x = 1,062,889,689.30 × 605,280,995.80 - Step 4: Simplify right side
708,593,126.20x = 643,346,929,565,056,512 - Step 5: Solve for x
x = 643,346,929,565,056,512/708,593,126.20 - Step 6: Final answer
x = 907,921,493.70
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Double scale
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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.