Home / 626,139,462.40-864,152,174.16-378,622,588

Finding the Fourth Proportional to 626,139,462.40, 864,152,174.16 and 378,622,588

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Solution

The fourth proportional to 626,139,462.40, 864,152,174.16 and 378,622,588 is: 522,547,375.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,139,462.40 : 864,152,174.16 = 378,622,588 : x
  2. Step 2: Convert to fraction form
    626,139,462.40/864,152,174.16 = 378,622,588/x
  3. Step 3: Cross multiply
    626,139,462.40x = 864,152,174.16 × 378,622,588
  4. Step 4: Simplify right side
    626,139,462.40x = 327,187,532,606,285,888
  5. Step 5: Solve for x
    x = 327,187,532,606,285,888/626,139,462.40
  6. Step 6: Final answer
    x = 522,547,375.23

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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.