Home / 430,742,086.48-646,275,966.72-168,613,975.36

Finding the Fourth Proportional to 430,742,086.48, 646,275,966.72 and 168,613,975.36

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Solution

The fourth proportional to 430,742,086.48, 646,275,966.72 and 168,613,975.36 is: 252,984,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,742,086.48 : 646,275,966.72 = 168,613,975.36 : x
  2. Step 2: Convert to fraction form
    430,742,086.48/646,275,966.72 = 168,613,975.36/x
  3. Step 3: Cross multiply
    430,742,086.48x = 646,275,966.72 × 168,613,975.36
  4. Step 4: Simplify right side
    430,742,086.48x = 108,971,159,928,286,272
  5. Step 5: Solve for x
    x = 108,971,159,928,286,272/430,742,086.48
  6. Step 6: Final answer
    x = 252,984,705.58

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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.