Home / 103,464,015.60-155,140,036.20-42,885,865.20

Finding the Fourth Proportional to 103,464,015.60, 155,140,036.20 and 42,885,865.20

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Solution

The fourth proportional to 103,464,015.60, 155,140,036.20 and 42,885,865.20 is: 64,305,591.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,464,015.60 : 155,140,036.20 = 42,885,865.20 : x
  2. Step 2: Convert to fraction form
    103,464,015.60/155,140,036.20 = 42,885,865.20/x
  3. Step 3: Cross multiply
    103,464,015.60x = 155,140,036.20 × 42,885,865.20
  4. Step 4: Simplify right side
    103,464,015.60x = 6,653,314,679,596,320
  5. Step 5: Solve for x
    x = 6,653,314,679,596,320/103,464,015.60
  6. Step 6: Final answer
    x = 64,305,591.09

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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.