Home / 186,624,905.40-279,937,358.10-78,919,529.40

Finding the Fourth Proportional to 186,624,905.40, 279,937,358.10 and 78,919,529.40

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Solution

The fourth proportional to 186,624,905.40, 279,937,358.10 and 78,919,529.40 is: 118,379,294.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,624,905.40 : 279,937,358.10 = 78,919,529.40 : x
  2. Step 2: Convert to fraction form
    186,624,905.40/279,937,358.10 = 78,919,529.40/x
  3. Step 3: Cross multiply
    186,624,905.40x = 279,937,358.10 × 78,919,529.40
  4. Step 4: Simplify right side
    186,624,905.40x = 22,092,524,562,731,280
  5. Step 5: Solve for x
    x = 22,092,524,562,731,280/186,624,905.40
  6. Step 6: Final answer
    x = 118,379,294.10

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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.