Home / 128,072,784.83-191,799,465.21-73,319,304.33

Finding the Fourth Proportional to 128,072,784.83, 191,799,465.21 and 73,319,304.33

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Solution

The fourth proportional to 128,072,784.83, 191,799,465.21 and 73,319,304.33 is: 109,801,652.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,072,784.83 : 191,799,465.21 = 73,319,304.33 : x
  2. Step 2: Convert to fraction form
    128,072,784.83/191,799,465.21 = 73,319,304.33/x
  3. Step 3: Cross multiply
    128,072,784.83x = 191,799,465.21 × 73,319,304.33
  4. Step 4: Simplify right side
    128,072,784.83x = 14,062,603,360,063,238
  5. Step 5: Solve for x
    x = 14,062,603,360,063,238/128,072,784.83
  6. Step 6: Final answer
    x = 109,801,652.08

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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.