Home / 206,687,246.40-310,030,869.60-70,372,629.90

Finding the Fourth Proportional to 206,687,246.40, 310,030,869.60 and 70,372,629.90

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Solution

The fourth proportional to 206,687,246.40, 310,030,869.60 and 70,372,629.90 is: 105,558,944.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,687,246.40 : 310,030,869.60 = 70,372,629.90 : x
  2. Step 2: Convert to fraction form
    206,687,246.40/310,030,869.60 = 70,372,629.90/x
  3. Step 3: Cross multiply
    206,687,246.40x = 310,030,869.60 × 70,372,629.90
  4. Step 4: Simplify right side
    206,687,246.40x = 21,817,687,643,935,964
  5. Step 5: Solve for x
    x = 21,817,687,643,935,964/206,687,246.40
  6. Step 6: Final answer
    x = 105,558,944.85

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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.