Home / 20,598,312.80-30,897,469.20-11,528,386.40

Finding the Fourth Proportional to 20,598,312.80, 30,897,469.20 and 11,528,386.40

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Solution

The fourth proportional to 20,598,312.80, 30,897,469.20 and 11,528,386.40 is: 17,292,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598,312.80 : 30,897,469.20 = 11,528,386.40 : x
  2. Step 2: Convert to fraction form
    20,598,312.80/30,897,469.20 = 11,528,386.40/x
  3. Step 3: Cross multiply
    20,598,312.80x = 30,897,469.20 × 11,528,386.40
  4. Step 4: Simplify right side
    20,598,312.80x = 356,197,963,719,698.88
  5. Step 5: Solve for x
    x = 356,197,963,719,698.88/20,598,312.80
  6. Step 6: Final answer
    x = 17,292,579.60

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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.