Home / 749,138,772.60-1,122,952,331.70-340,488,199.80

Finding the Fourth Proportional to 749,138,772.60, 1,122,952,331.70 and 340,488,199.80

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Solution

The fourth proportional to 749,138,772.60, 1,122,952,331.70 and 340,488,199.80 is: 510,388,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,138,772.60 : 1,122,952,331.70 = 340,488,199.80 : x
  2. Step 2: Convert to fraction form
    749,138,772.60/1,122,952,331.70 = 340,488,199.80/x
  3. Step 3: Cross multiply
    749,138,772.60x = 1,122,952,331.70 × 340,488,199.80
  4. Step 4: Simplify right side
    749,138,772.60x = 382,352,017,881,745,472
  5. Step 5: Solve for x
    x = 382,352,017,881,745,472/749,138,772.60
  6. Step 6: Final answer
    x = 510,388,771.57

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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.