Home / 919,939,530.72-1,377,709,454.16-530,581,936.80

Finding the Fourth Proportional to 919,939,530.72, 1,377,709,454.16 and 530,581,936.80

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Solution

The fourth proportional to 919,939,530.72, 1,377,709,454.16 and 530,581,936.80 is: 794,604,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,939,530.72 : 1,377,709,454.16 = 530,581,936.80 : x
  2. Step 2: Convert to fraction form
    919,939,530.72/1,377,709,454.16 = 530,581,936.80/x
  3. Step 3: Cross multiply
    919,939,530.72x = 1,377,709,454.16 × 530,581,936.80
  4. Step 4: Simplify right side
    919,939,530.72x = 730,987,750,535,883,648
  5. Step 5: Solve for x
    x = 730,987,750,535,883,648/919,939,530.72
  6. Step 6: Final answer
    x = 794,604,130.08

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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.