Home / 109,509,353,698.32-163,981,130,358.96-75,579,581,432.16

Finding the Fourth Proportional to 109,509,353,698.32, 163,981,130,358.96 and 75,579,581,432.16

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Solution

The fourth proportional to 109,509,353,698.32, 163,981,130,358.96 and 75,579,581,432.16 is: 113,174,124,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,509,353,698.32 : 163,981,130,358.96 = 75,579,581,432.16 : x
  2. Step 2: Convert to fraction form
    109,509,353,698.32/163,981,130,358.96 = 75,579,581,432.16/x
  3. Step 3: Cross multiply
    109,509,353,698.32x = 163,981,130,358.96 × 75,579,581,432.16
  4. Step 4: Simplify right side
    109,509,353,698.32x = 12,393,625,195,302,661,128,192
  5. Step 5: Solve for x
    x = 12,393,625,195,302,661,128,192/109,509,353,698.32
  6. Step 6: Final answer
    x = 113,174,124,188.93

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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.