Home / 19,077,125.20-28,615,860.79-5,430,266.22

Finding the Fourth Proportional to 19,077,125.20, 28,615,860.79 and 5,430,266.22

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Solution

The fourth proportional to 19,077,125.20, 28,615,860.79 and 5,430,266.22 is: 8,145,448.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,077,125.20 : 28,615,860.79 = 5,430,266.22 : x
  2. Step 2: Convert to fraction form
    19,077,125.20/28,615,860.79 = 5,430,266.22/x
  3. Step 3: Cross multiply
    19,077,125.20x = 28,615,860.79 × 5,430,266.22
  4. Step 4: Simplify right side
    19,077,125.20x = 155,391,742,204,159.50
  5. Step 5: Solve for x
    x = 155,391,742,204,159.50/19,077,125.20
  6. Step 6: Final answer
    x = 8,145,448.57

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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.