Home / 72,003,619.40-108,005,429.10-18,150,931.40

Finding the Fourth Proportional to 72,003,619.40, 108,005,429.10 and 18,150,931.40

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Solution

The fourth proportional to 72,003,619.40, 108,005,429.10 and 18,150,931.40 is: 27,226,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,003,619.40 : 108,005,429.10 = 18,150,931.40 : x
  2. Step 2: Convert to fraction form
    72,003,619.40/108,005,429.10 = 18,150,931.40/x
  3. Step 3: Cross multiply
    72,003,619.40x = 108,005,429.10 × 18,150,931.40
  4. Step 4: Simplify right side
    72,003,619.40x = 1,960,399,134,421,663.50
  5. Step 5: Solve for x
    x = 1,960,399,134,421,663.50/72,003,619.40
  6. Step 6: Final answer
    x = 27,226,397.10

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1.5x scale

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.