Home / 210,947,455.52-291,079,882.22-121,642,698.11

Finding the Fourth Proportional to 210,947,455.52, 291,079,882.22 and 121,642,698.11

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Solution

The fourth proportional to 210,947,455.52, 291,079,882.22 and 121,642,698.11 is: 167,851,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,947,455.52 : 291,079,882.22 = 121,642,698.11 : x
  2. Step 2: Convert to fraction form
    210,947,455.52/291,079,882.22 = 121,642,698.11/x
  3. Step 3: Cross multiply
    210,947,455.52x = 291,079,882.22 × 121,642,698.11
  4. Step 4: Simplify right side
    210,947,455.52x = 35,407,742,238,901,300
  5. Step 5: Solve for x
    x = 35,407,742,238,901,300/210,947,455.52
  6. Step 6: Final answer
    x = 167,851,004.19

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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.