Home / 129,806,769.60-194,710,154.40-38,930,358.60

Finding the Fourth Proportional to 129,806,769.60, 194,710,154.40 and 38,930,358.60

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Solution

The fourth proportional to 129,806,769.60, 194,710,154.40 and 38,930,358.60 is: 58,395,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,806,769.60 : 194,710,154.40 = 38,930,358.60 : x
  2. Step 2: Convert to fraction form
    129,806,769.60/194,710,154.40 = 38,930,358.60/x
  3. Step 3: Cross multiply
    129,806,769.60x = 194,710,154.40 × 38,930,358.60
  4. Step 4: Simplify right side
    129,806,769.60x = 7,580,136,133,853,368
  5. Step 5: Solve for x
    x = 7,580,136,133,853,368/129,806,769.60
  6. Step 6: Final answer
    x = 58,395,537.90

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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.