Home / 747,477,486.60-1,121,109,941.70-256,213,426.20

Finding the Fourth Proportional to 747,477,486.60, 1,121,109,941.70 and 256,213,426.20

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Solution

The fourth proportional to 747,477,486.60, 1,121,109,941.70 and 256,213,426.20 is: 384,283,706.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,477,486.60 : 1,121,109,941.70 = 256,213,426.20 : x
  2. Step 2: Convert to fraction form
    747,477,486.60/1,121,109,941.70 = 256,213,426.20/x
  3. Step 3: Cross multiply
    747,477,486.60x = 1,121,109,941.70 × 256,213,426.20
  4. Step 4: Simplify right side
    747,477,486.60x = 287,243,419,309,839,264
  5. Step 5: Solve for x
    x = 287,243,419,309,839,264/747,477,486.60
  6. Step 6: Final answer
    x = 384,283,706.81

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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.