Finding the Fourth Proportional to 1,125,773,424.22, 1,688,320,155.52 and 338,618,116.85
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Solution
The fourth proportional to 1,125,773,424.22, 1,688,320,155.52 and 338,618,116.85 is: 507,824,913.44
Step by Step Solution
- Step 1: Write the proportion equation
1,125,773,424.22 : 1,688,320,155.52 = 338,618,116.85 : x - Step 2: Convert to fraction form
1,125,773,424.22/1,688,320,155.52 = 338,618,116.85/x - Step 3: Cross multiply
1,125,773,424.22x = 1,688,320,155.52 × 338,618,116.85 - Step 4: Simplify right side
1,125,773,424.22x = 571,695,791,702,081,536 - Step 5: Solve for x
x = 571,695,791,702,081,536/1,125,773,424.22 - Step 6: Final answer
x = 507,824,913.44
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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.