Finding the Fourth Proportional to 314,930,259.70, 472,395,389.55 and 286,232,445.70
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Solution
The fourth proportional to 314,930,259.70, 472,395,389.55 and 286,232,445.70 is: 429,348,668.55
Step by Step Solution
- Step 1: Write the proportion equation
314,930,259.70 : 472,395,389.55 = 286,232,445.70 : x - Step 2: Convert to fraction form
314,930,259.70/472,395,389.55 = 286,232,445.70/x - Step 3: Cross multiply
314,930,259.70x = 472,395,389.55 × 286,232,445.70 - Step 4: Simplify right side
314,930,259.70x = 135,214,887,688,300,720 - Step 5: Solve for x
x = 135,214,887,688,300,720/314,930,259.70 - Step 6: Final answer
x = 429,348,668.55
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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.