Home / 919,709,692.65-1,379,584,135.71-329,538,484.35

Finding the Fourth Proportional to 919,709,692.65, 1,379,584,135.71 and 329,538,484.35

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Solution

The fourth proportional to 919,709,692.65, 1,379,584,135.71 and 329,538,484.35 is: 494,314,748.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,709,692.65 : 1,379,584,135.71 = 329,538,484.35 : x
  2. Step 2: Convert to fraction form
    919,709,692.65/1,379,584,135.71 = 329,538,484.35/x
  3. Step 3: Cross multiply
    919,709,692.65x = 1,379,584,135.71 × 329,538,484.35
  4. Step 4: Simplify right side
    919,709,692.65x = 454,626,065,115,178,176
  5. Step 5: Solve for x
    x = 454,626,065,115,178,176/919,709,692.65
  6. Step 6: Final answer
    x = 494,314,748.17

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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.