Home / 43,170,931.20-64,748,102.40-12,879,782.40

Finding the Fourth Proportional to 43,170,931.20, 64,748,102.40 and 12,879,782.40

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Solution

The fourth proportional to 43,170,931.20, 64,748,102.40 and 12,879,782.40 is: 19,317,199.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,170,931.20 : 64,748,102.40 = 12,879,782.40 : x
  2. Step 2: Convert to fraction form
    43,170,931.20/64,748,102.40 = 12,879,782.40/x
  3. Step 3: Cross multiply
    43,170,931.20x = 64,748,102.40 × 12,879,782.40
  4. Step 4: Simplify right side
    43,170,931.20x = 833,941,469,724,917.75
  5. Step 5: Solve for x
    x = 833,941,469,724,917.75/43,170,931.20
  6. Step 6: Final answer
    x = 19,317,199.02

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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.