Home / 128,736,700.60-193,105,050.90-47,940,950.20

Finding the Fourth Proportional to 128,736,700.60, 193,105,050.90 and 47,940,950.20

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Solution

The fourth proportional to 128,736,700.60, 193,105,050.90 and 47,940,950.20 is: 71,911,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736,700.60 : 193,105,050.90 = 47,940,950.20 : x
  2. Step 2: Convert to fraction form
    128,736,700.60/193,105,050.90 = 47,940,950.20/x
  3. Step 3: Cross multiply
    128,736,700.60x = 193,105,050.90 × 47,940,950.20
  4. Step 4: Simplify right side
    128,736,700.60x = 9,257,639,628,565,366
  5. Step 5: Solve for x
    x = 9,257,639,628,565,366/128,736,700.60
  6. Step 6: Final answer
    x = 71,911,425.30

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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.