Home / 189,346,365.60-283,853,660.40-128,565,002.40

Finding the Fourth Proportional to 189,346,365.60, 283,853,660.40 and 128,565,002.40

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Solution

The fourth proportional to 189,346,365.60, 283,853,660.40 and 128,565,002.40 is: 192,734,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,346,365.60 : 283,853,660.40 = 128,565,002.40 : x
  2. Step 2: Convert to fraction form
    189,346,365.60/283,853,660.40 = 128,565,002.40/x
  3. Step 3: Cross multiply
    189,346,365.60x = 283,853,660.40 × 128,565,002.40
  4. Step 4: Simplify right side
    189,346,365.60x = 36,493,646,530,574,784
  5. Step 5: Solve for x
    x = 36,493,646,530,574,784/189,346,365.60
  6. Step 6: Final answer
    x = 192,734,866.68

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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.