Home / 145,189,365.15-200,358,801.21-79,110,406.39

Finding the Fourth Proportional to 145,189,365.15, 200,358,801.21 and 79,110,406.39

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Solution

The fourth proportional to 145,189,365.15, 200,358,801.21 and 79,110,406.39 is: 109,170,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,189,365.15 : 200,358,801.21 = 79,110,406.39 : x
  2. Step 2: Convert to fraction form
    145,189,365.15/200,358,801.21 = 79,110,406.39/x
  3. Step 3: Cross multiply
    145,189,365.15x = 200,358,801.21 × 79,110,406.39
  4. Step 4: Simplify right side
    145,189,365.15x = 15,850,466,187,035,428
  5. Step 5: Solve for x
    x = 15,850,466,187,035,428/145,189,365.15
  6. Step 6: Final answer
    x = 109,170,986.25

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1.5x scale

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.