Finding the Fourth Proportional to 1,031,557,719.80, 1,547,336,579.70 and 514,997,067.80
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Solution
The fourth proportional to 1,031,557,719.80, 1,547,336,579.70 and 514,997,067.80 is: 772,495,601.70
Step by Step Solution
- Step 1: Write the proportion equation
1,031,557,719.80 : 1,547,336,579.70 = 514,997,067.80 : x - Step 2: Convert to fraction form
1,031,557,719.80/1,547,336,579.70 = 514,997,067.80/x - Step 3: Cross multiply
1,031,557,719.80x = 1,547,336,579.70 × 514,997,067.80 - Step 4: Simplify right side
1,031,557,719.80x = 796,873,801,445,181,056 - Step 5: Solve for x
x = 796,873,801,445,181,056/1,031,557,719.80 - Step 6: Final answer
x = 772,495,601.70
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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.