Home / 217,462,600.92-300,108,271.39-128,158,314.20

Finding the Fourth Proportional to 217,462,600.92, 300,108,271.39 and 128,158,314.20

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Solution

The fourth proportional to 217,462,600.92, 300,108,271.39 and 128,158,314.20 is: 176,864,297.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,462,600.92 : 300,108,271.39 = 128,158,314.20 : x
  2. Step 2: Convert to fraction form
    217,462,600.92/300,108,271.39 = 128,158,314.20/x
  3. Step 3: Cross multiply
    217,462,600.92x = 300,108,271.39 × 128,158,314.20
  4. Step 4: Simplify right side
    217,462,600.92x = 38,461,370,137,317,944
  5. Step 5: Solve for x
    x = 38,461,370,137,317,944/217,462,600.92
  6. Step 6: Final answer
    x = 176,864,297.47

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1.5x scale

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.