Home / 12,507,128.16-18,761,435.80-4,830,831.04

Finding the Fourth Proportional to 12,507,128.16, 18,761,435.80 and 4,830,831.04

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Solution

The fourth proportional to 12,507,128.16, 18,761,435.80 and 4,830,831.04 is: 7,246,533.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507,128.16 : 18,761,435.80 = 4,830,831.04 : x
  2. Step 2: Convert to fraction form
    12,507,128.16/18,761,435.80 = 4,830,831.04/x
  3. Step 3: Cross multiply
    12,507,128.16x = 18,761,435.80 × 4,830,831.04
  4. Step 4: Simplify right side
    12,507,128.16x = 90,633,326,417,607.23
  5. Step 5: Solve for x
    x = 90,633,326,417,607.23/12,507,128.16
  6. Step 6: Final answer
    x = 7,246,533.76

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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.