Home / 977,932,514.32-1,466,739,311.64-287,678,306.32

Finding the Fourth Proportional to 977,932,514.32, 1,466,739,311.64 and 287,678,306.32

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Solution

The fourth proportional to 977,932,514.32, 1,466,739,311.64 and 287,678,306.32 is: 431,470,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,932,514.32 : 1,466,739,311.64 = 287,678,306.32 : x
  2. Step 2: Convert to fraction form
    977,932,514.32/1,466,739,311.64 = 287,678,306.32/x
  3. Step 3: Cross multiply
    977,932,514.32x = 1,466,739,311.64 × 287,678,306.32
  4. Step 4: Simplify right side
    977,932,514.32x = 421,949,080,985,557,888
  5. Step 5: Solve for x
    x = 421,949,080,985,557,888/977,932,514.32
  6. Step 6: Final answer
    x = 431,470,551.20

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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.