Home / 979,341,145.10-1,469,238,659.93-279,842,391.59

Finding the Fourth Proportional to 979,341,145.10, 1,469,238,659.93 and 279,842,391.59

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Solution

The fourth proportional to 979,341,145.10, 1,469,238,659.93 and 279,842,391.59 is: 419,828,435.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,341,145.10 : 1,469,238,659.93 = 279,842,391.59 : x
  2. Step 2: Convert to fraction form
    979,341,145.10/1,469,238,659.93 = 279,842,391.59/x
  3. Step 3: Cross multiply
    979,341,145.10x = 1,469,238,659.93 × 279,842,391.59
  4. Step 4: Simplify right side
    979,341,145.10x = 411,155,260,402,552,448
  5. Step 5: Solve for x
    x = 411,155,260,402,552,448/979,341,145.10
  6. Step 6: Final answer
    x = 419,828,435.13

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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.