Finding the Fourth Proportional to 199,485,830.90, 299,228,746.35 and 190,982,774.90
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Solution
The fourth proportional to 199,485,830.90, 299,228,746.35 and 190,982,774.90 is: 286,474,162.35
Step by Step Solution
- Step 1: Write the proportion equation
199,485,830.90 : 299,228,746.35 = 190,982,774.90 : x - Step 2: Convert to fraction form
199,485,830.90/299,228,746.35 = 190,982,774.90/x - Step 3: Cross multiply
199,485,830.90x = 299,228,746.35 × 190,982,774.90 - Step 4: Simplify right side
199,485,830.90x = 57,147,536,307,771,256 - Step 5: Solve for x
x = 57,147,536,307,771,256/199,485,830.90 - Step 6: Final answer
x = 286,474,162.35
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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.