Home / 1,214,789,642.40-1,825,091,434.84-778,944,246.24

Finding the Fourth Proportional to 1,214,789,642.40, 1,825,091,434.84 and 778,944,246.24

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Solution

The fourth proportional to 1,214,789,642.40, 1,825,091,434.84 and 778,944,246.24 is: 1,170,280,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,789,642.40 : 1,825,091,434.84 = 778,944,246.24 : x
  2. Step 2: Convert to fraction form
    1,214,789,642.40/1,825,091,434.84 = 778,944,246.24/x
  3. Step 3: Cross multiply
    1,214,789,642.40x = 1,825,091,434.84 × 778,944,246.24
  4. Step 4: Simplify right side
    1,214,789,642.40x = 1,421,644,472,030,523,904
  5. Step 5: Solve for x
    x = 1,421,644,472,030,523,904/1,214,789,642.40
  6. Step 6: Final answer
    x = 1,170,280,369.88

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Double scale
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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.