Finding the Fourth Proportional to 1,500,879,730.79, 2,070,006,330.48 and 1,319,438,764.54
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Solution
The fourth proportional to 1,500,879,730.79, 2,070,006,330.48 and 1,319,438,764.54 is: 1,819,763,795.36
Step by Step Solution
- Step 1: Write the proportion equation
1,500,879,730.79 : 2,070,006,330.48 = 1,319,438,764.54 : x - Step 2: Convert to fraction form
1,500,879,730.79/2,070,006,330.48 = 1,319,438,764.54/x - Step 3: Cross multiply
1,500,879,730.79x = 2,070,006,330.48 × 1,319,438,764.54 - Step 4: Simplify right side
1,500,879,730.79x = 2,731,246,595,278,510,080 - Step 5: Solve for x
x = 2,731,246,595,278,510,080/1,500,879,730.79 - Step 6: Final answer
x = 1,819,763,795.36
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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.