Home / 781,854,136.57-1,078,979,778.68-460,004,569.82

Finding the Fourth Proportional to 781,854,136.57, 1,078,979,778.68 and 460,004,569.82

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Solution

The fourth proportional to 781,854,136.57, 1,078,979,778.68 and 460,004,569.82 is: 634,818,703.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,854,136.57 : 1,078,979,778.68 = 460,004,569.82 : x
  2. Step 2: Convert to fraction form
    781,854,136.57/1,078,979,778.68 = 460,004,569.82/x
  3. Step 3: Cross multiply
    781,854,136.57x = 1,078,979,778.68 × 460,004,569.82
  4. Step 4: Simplify right side
    781,854,136.57x = 496,335,628,936,172,224
  5. Step 5: Solve for x
    x = 496,335,628,936,172,224/781,854,136.57
  6. Step 6: Final answer
    x = 634,818,703.03

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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.