Home / 145,521,055.71-217,167,888.44-129,993,973.54

Finding the Fourth Proportional to 145,521,055.71, 217,167,888.44 and 129,993,973.54

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Solution

The fourth proportional to 145,521,055.71, 217,167,888.44 and 129,993,973.54 is: 193,996,096.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,521,055.71 : 217,167,888.44 = 129,993,973.54 : x
  2. Step 2: Convert to fraction form
    145,521,055.71/217,167,888.44 = 129,993,973.54/x
  3. Step 3: Cross multiply
    145,521,055.71x = 217,167,888.44 × 129,993,973.54
  4. Step 4: Simplify right side
    145,521,055.71x = 28,230,516,743,389,096
  5. Step 5: Solve for x
    x = 28,230,516,743,389,096/145,521,055.71
  6. Step 6: Final answer
    x = 193,996,096.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.