Home / 15,808,568.76-21,807,409.68-9,615,509.64

Finding the Fourth Proportional to 15,808,568.76, 21,807,409.68 and 9,615,509.64

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Solution

The fourth proportional to 15,808,568.76, 21,807,409.68 and 9,615,509.64 is: 13,264,284.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,808,568.76 : 21,807,409.68 = 9,615,509.64 : x
  2. Step 2: Convert to fraction form
    15,808,568.76/21,807,409.68 = 9,615,509.64/x
  3. Step 3: Cross multiply
    15,808,568.76x = 21,807,409.68 × 9,615,509.64
  4. Step 4: Simplify right side
    15,808,568.76x = 209,689,358,001,469.31
  5. Step 5: Solve for x
    x = 209,689,358,001,469.31/15,808,568.76
  6. Step 6: Final answer
    x = 13,264,284.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.