Home / 878,329,247.14-1,212,017,164.20-501,911,136.36

Finding the Fourth Proportional to 878,329,247.14, 1,212,017,164.20 and 501,911,136.36

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Solution

The fourth proportional to 878,329,247.14, 1,212,017,164.20 and 501,911,136.36 is: 692,593,254.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,329,247.14 : 1,212,017,164.20 = 501,911,136.36 : x
  2. Step 2: Convert to fraction form
    878,329,247.14/1,212,017,164.20 = 501,911,136.36/x
  3. Step 3: Cross multiply
    878,329,247.14x = 1,212,017,164.20 × 501,911,136.36
  4. Step 4: Simplify right side
    878,329,247.14x = 608,324,912,171,446,784
  5. Step 5: Solve for x
    x = 608,324,912,171,446,784/878,329,247.14
  6. Step 6: Final answer
    x = 692,593,254.92

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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.