Home / 21,128,980.10-31,693,470.15-16,340,106.20

Finding the Fourth Proportional to 21,128,980.10, 31,693,470.15 and 16,340,106.20

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Solution

The fourth proportional to 21,128,980.10, 31,693,470.15 and 16,340,106.20 is: 24,510,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,128,980.10 : 31,693,470.15 = 16,340,106.20 : x
  2. Step 2: Convert to fraction form
    21,128,980.10/31,693,470.15 = 16,340,106.20/x
  3. Step 3: Cross multiply
    21,128,980.10x = 31,693,470.15 × 16,340,106.20
  4. Step 4: Simplify right side
    21,128,980.10x = 517,874,668,097,529.88
  5. Step 5: Solve for x
    x = 517,874,668,097,529.88/21,128,980.10
  6. Step 6: Final answer
    x = 24,510,159.30

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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.