Home / 802,342,490.88-1,107,391,428-520,434,298.08

Finding the Fourth Proportional to 802,342,490.88, 1,107,391,428 and 520,434,298.08

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Solution

The fourth proportional to 802,342,490.88, 1,107,391,428 and 520,434,298.08 is: 718,302,329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,342,490.88 : 1,107,391,428 = 520,434,298.08 : x
  2. Step 2: Convert to fraction form
    802,342,490.88/1,107,391,428 = 520,434,298.08/x
  3. Step 3: Cross multiply
    802,342,490.88x = 1,107,391,428 × 520,434,298.08
  4. Step 4: Simplify right side
    802,342,490.88x = 576,324,480,530,988,864
  5. Step 5: Solve for x
    x = 576,324,480,530,988,864/802,342,490.88
  6. Step 6: Final answer
    x = 718,302,329.84

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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.