Home / 979,819,369.72-1,352,148,362.84-533,786,398.22

Finding the Fourth Proportional to 979,819,369.72, 1,352,148,362.84 and 533,786,398.22

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Solution

The fourth proportional to 979,819,369.72, 1,352,148,362.84 and 533,786,398.22 is: 736,623,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,819,369.72 : 1,352,148,362.84 = 533,786,398.22 : x
  2. Step 2: Convert to fraction form
    979,819,369.72/1,352,148,362.84 = 533,786,398.22/x
  3. Step 3: Cross multiply
    979,819,369.72x = 1,352,148,362.84 × 533,786,398.22
  4. Step 4: Simplify right side
    979,819,369.72x = 721,758,404,459,433,344
  5. Step 5: Solve for x
    x = 721,758,404,459,433,344/979,819,369.72
  6. Step 6: Final answer
    x = 736,623,939.84

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Double scale
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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.