Home / 135,342,001.28-186,767,128.54-76,603,404.92

Finding the Fourth Proportional to 135,342,001.28, 186,767,128.54 and 76,603,404.92

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Solution

The fourth proportional to 135,342,001.28, 186,767,128.54 and 76,603,404.92 is: 105,709,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,342,001.28 : 186,767,128.54 = 76,603,404.92 : x
  2. Step 2: Convert to fraction form
    135,342,001.28/186,767,128.54 = 76,603,404.92/x
  3. Step 3: Cross multiply
    135,342,001.28x = 186,767,128.54 × 76,603,404.92
  4. Step 4: Simplify right side
    135,342,001.28x = 14,306,997,973,295,308
  5. Step 5: Solve for x
    x = 14,306,997,973,295,308/135,342,001.28
  6. Step 6: Final answer
    x = 105,709,963.19

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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.