Home / 142,946,289.92-213,878,343.08-84,685,237.46

Finding the Fourth Proportional to 142,946,289.92, 213,878,343.08 and 84,685,237.46

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Solution

The fourth proportional to 142,946,289.92, 213,878,343.08 and 84,685,237.46 is: 126,707,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,946,289.92 : 213,878,343.08 = 84,685,237.46 : x
  2. Step 2: Convert to fraction form
    142,946,289.92/213,878,343.08 = 84,685,237.46/x
  3. Step 3: Cross multiply
    142,946,289.92x = 213,878,343.08 × 84,685,237.46
  4. Step 4: Simplify right side
    142,946,289.92x = 18,112,338,271,281,148
  5. Step 5: Solve for x
    x = 18,112,338,271,281,148/142,946,289.92
  6. Step 6: Final answer
    x = 126,707,298.81

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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.