Home / 538,278,683.10-742,824,468.63-290,760,043.74

Finding the Fourth Proportional to 538,278,683.10, 742,824,468.63 and 290,760,043.74

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Solution

The fourth proportional to 538,278,683.10, 742,824,468.63 and 290,760,043.74 is: 401,248,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278,683.10 : 742,824,468.63 = 290,760,043.74 : x
  2. Step 2: Convert to fraction form
    538,278,683.10/742,824,468.63 = 290,760,043.74/x
  3. Step 3: Cross multiply
    538,278,683.10x = 742,824,468.63 × 290,760,043.74
  4. Step 4: Simplify right side
    538,278,683.10x = 215,983,674,990,001,056
  5. Step 5: Solve for x
    x = 215,983,674,990,001,056/538,278,683.10
  6. Step 6: Final answer
    x = 401,248,798.76

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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.