Home / 118,578,939.24-163,508,989.38-77,249,188.20

Finding the Fourth Proportional to 118,578,939.24, 163,508,989.38 and 77,249,188.20

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Solution

The fourth proportional to 118,578,939.24, 163,508,989.38 and 77,249,188.20 is: 106,519,224.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,578,939.24 : 163,508,989.38 = 77,249,188.20 : x
  2. Step 2: Convert to fraction form
    118,578,939.24/163,508,989.38 = 77,249,188.20/x
  3. Step 3: Cross multiply
    118,578,939.24x = 163,508,989.38 × 77,249,188.20
  4. Step 4: Simplify right side
    118,578,939.24x = 12,630,936,693,007,422
  5. Step 5: Solve for x
    x = 12,630,936,693,007,422/118,578,939.24
  6. Step 6: Final answer
    x = 106,519,224.86

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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.