Home / 20,736,007.60-31,104,011.40-15,697,159.60

Finding the Fourth Proportional to 20,736,007.60, 31,104,011.40 and 15,697,159.60

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Solution

The fourth proportional to 20,736,007.60, 31,104,011.40 and 15,697,159.60 is: 23,545,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,007.60 : 31,104,011.40 = 15,697,159.60 : x
  2. Step 2: Convert to fraction form
    20,736,007.60/31,104,011.40 = 15,697,159.60/x
  3. Step 3: Cross multiply
    20,736,007.60x = 31,104,011.40 × 15,697,159.60
  4. Step 4: Simplify right side
    20,736,007.60x = 488,244,631,146,019.38
  5. Step 5: Solve for x
    x = 488,244,631,146,019.38/20,736,007.60
  6. Step 6: Final answer
    x = 23,545,739.40

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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.