Home / 388,767,756-536,510,700.72-214,938,697.44

Finding the Fourth Proportional to 388,767,756, 536,510,700.72 and 214,938,697.44

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Solution

The fourth proportional to 388,767,756, 536,510,700.72 and 214,938,697.44 is: 296,621,593.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,767,756 : 536,510,700.72 = 214,938,697.44 : x
  2. Step 2: Convert to fraction form
    388,767,756/536,510,700.72 = 214,938,697.44/x
  3. Step 3: Cross multiply
    388,767,756x = 536,510,700.72 × 214,938,697.44
  4. Step 4: Simplify right side
    388,767,756x = 115,316,911,175,378,480
  5. Step 5: Solve for x
    x = 115,316,911,175,378,480/388,767,756
  6. Step 6: Final answer
    x = 296,621,593.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.