Home / 689,535,513.10-951,579,196.28-376,289,917.53

Finding the Fourth Proportional to 689,535,513.10, 951,579,196.28 and 376,289,917.53

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Solution

The fourth proportional to 689,535,513.10, 951,579,196.28 and 376,289,917.53 is: 519,291,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,535,513.10 : 951,579,196.28 = 376,289,917.53 : x
  2. Step 2: Convert to fraction form
    689,535,513.10/951,579,196.28 = 376,289,917.53/x
  3. Step 3: Cross multiply
    689,535,513.10x = 951,579,196.28 × 376,289,917.53
  4. Step 4: Simplify right side
    689,535,513.10x = 358,069,657,291,464,832
  5. Step 5: Solve for x
    x = 358,069,657,291,464,832/689,535,513.10
  6. Step 6: Final answer
    x = 519,291,103.20

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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.