Home / 878,329,242.63-1,212,017,157.99-501,911,131.86

Finding the Fourth Proportional to 878,329,242.63, 1,212,017,157.99 and 501,911,131.86

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Solution

The fourth proportional to 878,329,242.63, 1,212,017,157.99 and 501,911,131.86 is: 692,593,248.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,329,242.63 : 1,212,017,157.99 = 501,911,131.86 : x
  2. Step 2: Convert to fraction form
    878,329,242.63/1,212,017,157.99 = 501,911,131.86/x
  3. Step 3: Cross multiply
    878,329,242.63x = 1,212,017,157.99 × 501,911,131.86
  4. Step 4: Simplify right side
    878,329,242.63x = 608,324,903,600,501,376
  5. Step 5: Solve for x
    x = 608,324,903,600,501,376/878,329,242.63
  6. Step 6: Final answer
    x = 692,593,248.72

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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.