Home / 152,053,749.56-209,838,600-85,972,828.32

Finding the Fourth Proportional to 152,053,749.56, 209,838,600 and 85,972,828.32

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Solution

The fourth proportional to 152,053,749.56, 209,838,600 and 85,972,828.32 is: 118,645,005.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,053,749.56 : 209,838,600 = 85,972,828.32 : x
  2. Step 2: Convert to fraction form
    152,053,749.56/209,838,600 = 85,972,828.32/x
  3. Step 3: Cross multiply
    152,053,749.56x = 209,838,600 × 85,972,828.32
  4. Step 4: Simplify right side
    152,053,749.56x = 18,040,417,932,709,152
  5. Step 5: Solve for x
    x = 18,040,417,932,709,152/152,053,749.56
  6. Step 6: Final answer
    x = 118,645,005.37

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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.