Home / 149,228,746.70-205,936,487.36-86,542,011.72

Finding the Fourth Proportional to 149,228,746.70, 205,936,487.36 and 86,542,011.72

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Solution

The fourth proportional to 149,228,746.70, 205,936,487.36 and 86,542,011.72 is: 119,428,449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,228,746.70 : 205,936,487.36 = 86,542,011.72 : x
  2. Step 2: Convert to fraction form
    149,228,746.70/205,936,487.36 = 86,542,011.72/x
  3. Step 3: Cross multiply
    149,228,746.70x = 205,936,487.36 × 86,542,011.72
  4. Step 4: Simplify right side
    149,228,746.70x = 17,822,157,902,684,752
  5. Step 5: Solve for x
    x = 17,822,157,902,684,752/149,228,746.70
  6. Step 6: Final answer
    x = 119,428,449.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.