Home / 554,801,840.55-832,098,717.72-278,378,835.06

Finding the Fourth Proportional to 554,801,840.55, 832,098,717.72 and 278,378,835.06

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Solution

The fourth proportional to 554,801,840.55, 832,098,717.72 and 278,378,835.06 is: 417,516,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,801,840.55 : 832,098,717.72 = 278,378,835.06 : x
  2. Step 2: Convert to fraction form
    554,801,840.55/832,098,717.72 = 278,378,835.06/x
  3. Step 3: Cross multiply
    554,801,840.55x = 832,098,717.72 × 278,378,835.06
  4. Step 4: Simplify right side
    554,801,840.55x = 231,638,671,693,813,376
  5. Step 5: Solve for x
    x = 231,638,671,693,813,376/554,801,840.55
  6. Step 6: Final answer
    x = 417,516,047.65

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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.