Home / 165,260,784.60-247,607,741.70-78,813,048.60

Finding the Fourth Proportional to 165,260,784.60, 247,607,741.70 and 78,813,048.60

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Solution

The fourth proportional to 165,260,784.60, 247,607,741.70 and 78,813,048.60 is: 118,084,402.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,260,784.60 : 247,607,741.70 = 78,813,048.60 : x
  2. Step 2: Convert to fraction form
    165,260,784.60/247,607,741.70 = 78,813,048.60/x
  3. Step 3: Cross multiply
    165,260,784.60x = 247,607,741.70 × 78,813,048.60
  4. Step 4: Simplify right side
    165,260,784.60x = 19,514,720,980,338,344
  5. Step 5: Solve for x
    x = 19,514,720,980,338,344/165,260,784.60
  6. Step 6: Final answer
    x = 118,084,402.34

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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.