Home / 13,239,938.40-19,859,907.60-4,720,552.80

Finding the Fourth Proportional to 13,239,938.40, 19,859,907.60 and 4,720,552.80

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Solution

The fourth proportional to 13,239,938.40, 19,859,907.60 and 4,720,552.80 is: 7,080,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239,938.40 : 19,859,907.60 = 4,720,552.80 : x
  2. Step 2: Convert to fraction form
    13,239,938.40/19,859,907.60 = 4,720,552.80/x
  3. Step 3: Cross multiply
    13,239,938.40x = 19,859,907.60 × 4,720,552.80
  4. Step 4: Simplify right side
    13,239,938.40x = 93,749,742,428,921.28
  5. Step 5: Solve for x
    x = 93,749,742,428,921.28/13,239,938.40
  6. Step 6: Final answer
    x = 7,080,829.20

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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.