Finding the Fourth Proportional to 129,411,356,744.40, 194,117,035,116.60 and 63,128,334,613.20
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Solution
The fourth proportional to 129,411,356,744.40, 194,117,035,116.60 and 63,128,334,613.20 is: 94,692,501,919.80
Step by Step Solution
- Step 1: Write the proportion equation
129,411,356,744.40 : 194,117,035,116.60 = 63,128,334,613.20 : x - Step 2: Convert to fraction form
129,411,356,744.40/194,117,035,116.60 = 63,128,334,613.20/x - Step 3: Cross multiply
129,411,356,744.40x = 194,117,035,116.60 × 63,128,334,613.20 - Step 4: Simplify right side
129,411,356,744.40x = 12,254,285,146,963,019,038,720 - Step 5: Solve for x
x = 12,254,285,146,963,019,038,720/129,411,356,744.40 - Step 6: Final answer
x = 94,692,501,919.80
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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.