Home / 103,464,021.60-155,140,045.20-42,885,871.20

Finding the Fourth Proportional to 103,464,021.60, 155,140,045.20 and 42,885,871.20

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Solution

The fourth proportional to 103,464,021.60, 155,140,045.20 and 42,885,871.20 is: 64,305,600.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,464,021.60 : 155,140,045.20 = 42,885,871.20 : x
  2. Step 2: Convert to fraction form
    103,464,021.60/155,140,045.20 = 42,885,871.20/x
  3. Step 3: Cross multiply
    103,464,021.60x = 155,140,045.20 × 42,885,871.20
  4. Step 4: Simplify right side
    103,464,021.60x = 6,653,315,996,409,378
  5. Step 5: Solve for x
    x = 6,653,315,996,409,378/103,464,021.60
  6. Step 6: Final answer
    x = 64,305,600.09

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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.