Home / 802,342,430.88-1,107,391,346.40-520,434,238.56

Finding the Fourth Proportional to 802,342,430.88, 1,107,391,346.40 and 520,434,238.56

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Solution

The fourth proportional to 802,342,430.88, 1,107,391,346.40 and 520,434,238.56 is: 718,302,248.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,342,430.88 : 1,107,391,346.40 = 520,434,238.56 : x
  2. Step 2: Convert to fraction form
    802,342,430.88/1,107,391,346.40 = 520,434,238.56/x
  3. Step 3: Cross multiply
    802,342,430.88x = 1,107,391,346.40 × 520,434,238.56
  4. Step 4: Simplify right side
    802,342,430.88x = 576,324,372,151,617,280
  5. Step 5: Solve for x
    x = 576,324,372,151,617,280/802,342,430.88
  6. Step 6: Final answer
    x = 718,302,248.48

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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.