Finding the Fourth Proportional to 26,245,410.90, 39,368,116.35 and 19,778,889.30
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Solution
The fourth proportional to 26,245,410.90, 39,368,116.35 and 19,778,889.30 is: 29,668,333.95
Step by Step Solution
- Step 1: Write the proportion equation
26,245,410.90 : 39,368,116.35 = 19,778,889.30 : x - Step 2: Convert to fraction form
26,245,410.90/39,368,116.35 = 19,778,889.30/x - Step 3: Cross multiply
26,245,410.90x = 39,368,116.35 × 19,778,889.30 - Step 4: Simplify right side
26,245,410.90x = 778,657,615,236,170.12 - Step 5: Solve for x
x = 778,657,615,236,170.12/26,245,410.90 - Step 6: Final answer
x = 29,668,333.95
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Double scale
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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.