Finding the Fourth Proportional to 2,378,414,641.70, 3,567,621,962.55 and 655,128,625.70
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Solution
The fourth proportional to 2,378,414,641.70, 3,567,621,962.55 and 655,128,625.70 is: 982,692,938.55
Step by Step Solution
- Step 1: Write the proportion equation
2,378,414,641.70 : 3,567,621,962.55 = 655,128,625.70 : x - Step 2: Convert to fraction form
2,378,414,641.70/3,567,621,962.55 = 655,128,625.70/x - Step 3: Cross multiply
2,378,414,641.70x = 3,567,621,962.55 × 655,128,625.70 - Step 4: Simplify right side
2,378,414,641.70x = 2,337,251,273,342,518,784 - Step 5: Solve for x
x = 2,337,251,273,342,518,784/2,378,414,641.70 - Step 6: Final answer
x = 982,692,938.55
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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.