Home / 186,624,023.60-279,936,035.40-128,425,329.20

Finding the Fourth Proportional to 186,624,023.60, 279,936,035.40 and 128,425,329.20

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Solution

The fourth proportional to 186,624,023.60, 279,936,035.40 and 128,425,329.20 is: 192,637,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,624,023.60 : 279,936,035.40 = 128,425,329.20 : x
  2. Step 2: Convert to fraction form
    186,624,023.60/279,936,035.40 = 128,425,329.20/x
  3. Step 3: Cross multiply
    186,624,023.60x = 279,936,035.40 × 128,425,329.20
  4. Step 4: Simplify right side
    186,624,023.60x = 35,950,877,501,187,852
  5. Step 5: Solve for x
    x = 35,950,877,501,187,852/186,624,023.60
  6. Step 6: Final answer
    x = 192,637,993.80

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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.