Home / 120,964,917.60-181,447,376.40-86,952,693.60

Finding the Fourth Proportional to 120,964,917.60, 181,447,376.40 and 86,952,693.60

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Solution

The fourth proportional to 120,964,917.60, 181,447,376.40 and 86,952,693.60 is: 130,429,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,964,917.60 : 181,447,376.40 = 86,952,693.60 : x
  2. Step 2: Convert to fraction form
    120,964,917.60/181,447,376.40 = 86,952,693.60/x
  3. Step 3: Cross multiply
    120,964,917.60x = 181,447,376.40 × 86,952,693.60
  4. Step 4: Simplify right side
    120,964,917.60x = 15,777,338,124,633,070
  5. Step 5: Solve for x
    x = 15,777,338,124,633,070/120,964,917.60
  6. Step 6: Final answer
    x = 130,429,040.40

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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.