Home / 15,009,698.01-20,713,400.96-8,134,180.07

Finding the Fourth Proportional to 15,009,698.01, 20,713,400.96 and 8,134,180.07

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Solution

The fourth proportional to 15,009,698.01, 20,713,400.96 and 8,134,180.07 is: 11,225,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009,698.01 : 20,713,400.96 = 8,134,180.07 : x
  2. Step 2: Convert to fraction form
    15,009,698.01/20,713,400.96 = 8,134,180.07/x
  3. Step 3: Cross multiply
    15,009,698.01x = 20,713,400.96 × 8,134,180.07
  4. Step 4: Simplify right side
    15,009,698.01x = 168,486,533,342,869.81
  5. Step 5: Solve for x
    x = 168,486,533,342,869.81/15,009,698.01
  6. Step 6: Final answer
    x = 11,225,178.10

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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.