Finding the Fourth Proportional to 771,254,582.81, 1,064,657,167.77 and 520,698,378.07
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Solution
The fourth proportional to 771,254,582.81, 1,064,657,167.77 and 520,698,378.07 is: 718,783,748.99
Step by Step Solution
- Step 1: Write the proportion equation
771,254,582.81 : 1,064,657,167.77 = 520,698,378.07 : x - Step 2: Convert to fraction form
771,254,582.81/1,064,657,167.77 = 520,698,378.07/x - Step 3: Cross multiply
771,254,582.81x = 1,064,657,167.77 × 520,698,378.07 - Step 4: Simplify right side
771,254,582.81x = 554,365,260,450,512,064 - Step 5: Solve for x
x = 554,365,260,450,512,064/771,254,582.81 - Step 6: Final answer
x = 718,783,748.99
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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.