Finding the Fourth Proportional to 1,422,214,551,210.90, 1,962,658,024,224.60 and 771,893,144,840.99
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Solution
The fourth proportional to 1,422,214,551,210.90, 1,962,658,024,224.60 and 771,893,144,840.99 is: 1,065,213,594,725.40
Step by Step Solution
- Step 1: Write the proportion equation
1,422,214,551,210.90 : 1,962,658,024,224.60 = 771,893,144,840.99 : x - Step 2: Convert to fraction form
1,422,214,551,210.90/1,962,658,024,224.60 = 771,893,144,840.99/x - Step 3: Cross multiply
1,422,214,551,210.90x = 1,962,658,024,224.60 × 771,893,144,840.99 - Step 4: Simplify right side
1,422,214,551,210.90x = 1,514,962,274,566,130,368,512,000 - Step 5: Solve for x
x = 1,514,962,274,566,130,368,512,000/1,422,214,551,210.90 - Step 6: Final answer
x = 1,065,213,594,725.40
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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.