Home / 120,013,653.90-165,619,637.37-65,009,509.86

Finding the Fourth Proportional to 120,013,653.90, 165,619,637.37 and 65,009,509.86

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Solution

The fourth proportional to 120,013,653.90, 165,619,637.37 and 65,009,509.86 is: 89,713,554.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,013,653.90 : 165,619,637.37 = 65,009,509.86 : x
  2. Step 2: Convert to fraction form
    120,013,653.90/165,619,637.37 = 65,009,509.86/x
  3. Step 3: Cross multiply
    120,013,653.90x = 165,619,637.37 × 65,009,509.86
  4. Step 4: Simplify right side
    120,013,653.90x = 10,766,851,448,614,640
  5. Step 5: Solve for x
    x = 10,766,851,448,614,640/120,013,653.90
  6. Step 6: Final answer
    x = 89,713,554.24

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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.