Home / 12,458,831.10-18,688,246.65-7,650,930.30

Finding the Fourth Proportional to 12,458,831.10, 18,688,246.65 and 7,650,930.30

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Solution

The fourth proportional to 12,458,831.10, 18,688,246.65 and 7,650,930.30 is: 11,476,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,831.10 : 18,688,246.65 = 7,650,930.30 : x
  2. Step 2: Convert to fraction form
    12,458,831.10/18,688,246.65 = 7,650,930.30/x
  3. Step 3: Cross multiply
    12,458,831.10x = 18,688,246.65 × 7,650,930.30
  4. Step 4: Simplify right side
    12,458,831.10x = 142,982,472,548,358.47
  5. Step 5: Solve for x
    x = 142,982,472,548,358.47/12,458,831.10
  6. Step 6: Final answer
    x = 11,476,395.45

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1.5x scale

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.