Home / 689,501,579.10-1,034,252,368.65-431,008,676.70

Finding the Fourth Proportional to 689,501,579.10, 1,034,252,368.65 and 431,008,676.70

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Solution

The fourth proportional to 689,501,579.10, 1,034,252,368.65 and 431,008,676.70 is: 646,513,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,501,579.10 : 1,034,252,368.65 = 431,008,676.70 : x
  2. Step 2: Convert to fraction form
    689,501,579.10/1,034,252,368.65 = 431,008,676.70/x
  3. Step 3: Cross multiply
    689,501,579.10x = 1,034,252,368.65 × 431,008,676.70
  4. Step 4: Simplify right side
    689,501,579.10x = 445,771,744,785,677,056
  5. Step 5: Solve for x
    x = 445,771,744,785,677,056/689,501,579.10
  6. Step 6: Final answer
    x = 646,513,015.05

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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.