Home / 689,535,513.60-951,579,196.97-376,289,918.03

Finding the Fourth Proportional to 689,535,513.60, 951,579,196.97 and 376,289,918.03

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Solution

The fourth proportional to 689,535,513.60, 951,579,196.97 and 376,289,918.03 is: 519,291,103.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,535,513.60 : 951,579,196.97 = 376,289,918.03 : x
  2. Step 2: Convert to fraction form
    689,535,513.60/951,579,196.97 = 376,289,918.03/x
  3. Step 3: Cross multiply
    689,535,513.60x = 951,579,196.97 × 376,289,918.03
  4. Step 4: Simplify right side
    689,535,513.60x = 358,069,658,020,255,168
  5. Step 5: Solve for x
    x = 358,069,658,020,255,168/689,535,513.60
  6. Step 6: Final answer
    x = 519,291,103.88

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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.