Home / 70,956,810.90-106,435,216.35-19,838,747.70

Finding the Fourth Proportional to 70,956,810.90, 106,435,216.35 and 19,838,747.70

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Solution

The fourth proportional to 70,956,810.90, 106,435,216.35 and 19,838,747.70 is: 29,758,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,956,810.90 : 106,435,216.35 = 19,838,747.70 : x
  2. Step 2: Convert to fraction form
    70,956,810.90/106,435,216.35 = 19,838,747.70/x
  3. Step 3: Cross multiply
    70,956,810.90x = 106,435,216.35 × 19,838,747.70
  4. Step 4: Simplify right side
    70,956,810.90x = 2,111,541,403,562,564.75
  5. Step 5: Solve for x
    x = 2,111,541,403,562,564.75/70,956,810.90
  6. Step 6: Final answer
    x = 29,758,121.55

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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.