Finding the Fourth Proportional to 915,038,650.98, 1,263,361,443.99 and 702,967,784.53
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Solution
The fourth proportional to 915,038,650.98, 1,263,361,443.99 and 702,967,784.53 is: 970,562,712.72
Step by Step Solution
- Step 1: Write the proportion equation
915,038,650.98 : 1,263,361,443.99 = 702,967,784.53 : x - Step 2: Convert to fraction form
915,038,650.98/1,263,361,443.99 = 702,967,784.53/x - Step 3: Cross multiply
915,038,650.98x = 1,263,361,443.99 × 702,967,784.53 - Step 4: Simplify right side
915,038,650.98x = 888,102,395,342,272,000 - Step 5: Solve for x
x = 888,102,395,342,272,000/915,038,650.98 - Step 6: Final answer
x = 970,562,712.72
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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.