Home / 151,782,989.28-209,460,285.36-82,168,349.28

Finding the Fourth Proportional to 151,782,989.28, 209,460,285.36 and 82,168,349.28

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Solution

The fourth proportional to 151,782,989.28, 209,460,285.36 and 82,168,349.28 is: 113,392,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,782,989.28 : 209,460,285.36 = 82,168,349.28 : x
  2. Step 2: Convert to fraction form
    151,782,989.28/209,460,285.36 = 82,168,349.28/x
  3. Step 3: Cross multiply
    151,782,989.28x = 209,460,285.36 × 82,168,349.28
  4. Step 4: Simplify right side
    151,782,989.28x = 17,211,005,887,748,952
  5. Step 5: Solve for x
    x = 17,211,005,887,748,952/151,782,989.28
  6. Step 6: Final answer
    x = 113,392,192.16

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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.