Home / 1,347,280,939.38-2,020,992,779.94-415,243,948.50

Finding the Fourth Proportional to 1,347,280,939.38, 2,020,992,779.94 and 415,243,948.50

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Solution

The fourth proportional to 1,347,280,939.38, 2,020,992,779.94 and 415,243,948.50 is: 622,887,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,280,939.38 : 2,020,992,779.94 = 415,243,948.50 : x
  2. Step 2: Convert to fraction form
    1,347,280,939.38/2,020,992,779.94 = 415,243,948.50/x
  3. Step 3: Cross multiply
    1,347,280,939.38x = 2,020,992,779.94 × 415,243,948.50
  4. Step 4: Simplify right side
    1,347,280,939.38x = 839,205,021,832,277,248
  5. Step 5: Solve for x
    x = 839,205,021,832,277,248/1,347,280,939.38
  6. Step 6: Final answer
    x = 622,887,919.89

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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.