Home / 172,369,246.60-258,553,869.90-138,357,022.60

Finding the Fourth Proportional to 172,369,246.60, 258,553,869.90 and 138,357,022.60

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Solution

The fourth proportional to 172,369,246.60, 258,553,869.90 and 138,357,022.60 is: 207,535,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,369,246.60 : 258,553,869.90 = 138,357,022.60 : x
  2. Step 2: Convert to fraction form
    172,369,246.60/258,553,869.90 = 138,357,022.60/x
  3. Step 3: Cross multiply
    172,369,246.60x = 258,553,869.90 × 138,357,022.60
  4. Step 4: Simplify right side
    172,369,246.60x = 35,772,743,621,071,760
  5. Step 5: Solve for x
    x = 35,772,743,621,071,760/172,369,246.60
  6. Step 6: Final answer
    x = 207,535,533.90

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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.