Home / 817,758,667.34-1,128,491,633.48-500,195,585.53

Finding the Fourth Proportional to 817,758,667.34, 1,128,491,633.48 and 500,195,585.53

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Solution

The fourth proportional to 817,758,667.34, 1,128,491,633.48 and 500,195,585.53 is: 690,260,532.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,758,667.34 : 1,128,491,633.48 = 500,195,585.53 : x
  2. Step 2: Convert to fraction form
    817,758,667.34/1,128,491,633.48 = 500,195,585.53/x
  3. Step 3: Cross multiply
    817,758,667.34x = 1,128,491,633.48 × 500,195,585.53
  4. Step 4: Simplify right side
    817,758,667.34x = 564,466,533,374,234,752
  5. Step 5: Solve for x
    x = 564,466,533,374,234,752/817,758,667.34
  6. Step 6: Final answer
    x = 690,260,532.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.