Home / 145,167,455.81-200,330,484.86-79,087,748.36

Finding the Fourth Proportional to 145,167,455.81, 200,330,484.86 and 79,087,748.36

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Solution

The fourth proportional to 145,167,455.81, 200,330,484.86 and 79,087,748.36 is: 109,140,763.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,167,455.81 : 200,330,484.86 = 79,087,748.36 : x
  2. Step 2: Convert to fraction form
    145,167,455.81/200,330,484.86 = 79,087,748.36/x
  3. Step 3: Cross multiply
    145,167,455.81x = 200,330,484.86 × 79,087,748.36
  4. Step 4: Simplify right side
    145,167,455.81x = 15,843,686,974,640,538
  5. Step 5: Solve for x
    x = 15,843,686,974,640,538/145,167,455.81
  6. Step 6: Final answer
    x = 109,140,763.58

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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.