Home / 538,428,764.20-807,005,417.10-401,954,715.40

Finding the Fourth Proportional to 538,428,764.20, 807,005,417.10 and 401,954,715.40

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Solution

The fourth proportional to 538,428,764.20, 807,005,417.10 and 401,954,715.40 is: 602,455,987.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,428,764.20 : 807,005,417.10 = 401,954,715.40 : x
  2. Step 2: Convert to fraction form
    538,428,764.20/807,005,417.10 = 401,954,715.40/x
  3. Step 3: Cross multiply
    538,428,764.20x = 807,005,417.10 × 401,954,715.40
  4. Step 4: Simplify right side
    538,428,764.20x = 324,379,632,756,688,768
  5. Step 5: Solve for x
    x = 324,379,632,756,688,768/538,428,764.20
  6. Step 6: Final answer
    x = 602,455,987.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.