Home / 19,161,867.60-28,742,801.40-18,909,925.20

Finding the Fourth Proportional to 19,161,867.60, 28,742,801.40 and 18,909,925.20

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Solution

The fourth proportional to 19,161,867.60, 28,742,801.40 and 18,909,925.20 is: 28,364,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161,867.60 : 28,742,801.40 = 18,909,925.20 : x
  2. Step 2: Convert to fraction form
    19,161,867.60/28,742,801.40 = 18,909,925.20/x
  3. Step 3: Cross multiply
    19,161,867.60x = 28,742,801.40 × 18,909,925.20
  4. Step 4: Simplify right side
    19,161,867.60x = 543,524,224,512,455.25
  5. Step 5: Solve for x
    x = 543,524,224,512,455.25/19,161,867.60
  6. Step 6: Final answer
    x = 28,364,887.80

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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.