Home / 538,278,395.60-742,824,071.88-290,759,756.24

Finding the Fourth Proportional to 538,278,395.60, 742,824,071.88 and 290,759,756.24

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Solution

The fourth proportional to 538,278,395.60, 742,824,071.88 and 290,759,756.24 is: 401,248,402.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278,395.60 : 742,824,071.88 = 290,759,756.24 : x
  2. Step 2: Convert to fraction form
    538,278,395.60/742,824,071.88 = 290,759,756.24/x
  3. Step 3: Cross multiply
    538,278,395.60x = 742,824,071.88 × 290,759,756.24
  4. Step 4: Simplify right side
    538,278,395.60x = 215,983,346,069,033,056
  5. Step 5: Solve for x
    x = 215,983,346,069,033,056/538,278,395.60
  6. Step 6: Final answer
    x = 401,248,402.01

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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.