Home / 628,294,666.03-867,107,882.36-469,248,667.45

Finding the Fourth Proportional to 628,294,666.03, 867,107,882.36 and 469,248,667.45

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Solution

The fourth proportional to 628,294,666.03, 867,107,882.36 and 469,248,667.45 is: 647,608,901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,294,666.03 : 867,107,882.36 = 469,248,667.45 : x
  2. Step 2: Convert to fraction form
    628,294,666.03/867,107,882.36 = 469,248,667.45/x
  3. Step 3: Cross multiply
    628,294,666.03x = 867,107,882.36 × 469,248,667.45
  4. Step 4: Simplify right side
    628,294,666.03x = 406,889,218,331,826,688
  5. Step 5: Solve for x
    x = 406,889,218,331,826,688/628,294,666.03
  6. Step 6: Final answer
    x = 647,608,901.26

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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.