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Finding the Fourth Proportional to 7,878,012, 10,871,646.04 and 4,256,340

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Solution

The fourth proportional to 7,878,012, 10,871,646.04 and 4,256,340 is: 5,873,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,012 : 10,871,646.04 = 4,256,340 : x
  2. Step 2: Convert to fraction form
    7,878,012/10,871,646.04 = 4,256,340/x
  3. Step 3: Cross multiply
    7,878,012x = 10,871,646.04 × 4,256,340
  4. Step 4: Simplify right side
    7,878,012x = 46,273,421,905,893.59
  5. Step 5: Solve for x
    x = 46,273,421,905,893.59/7,878,012
  6. Step 6: Final answer
    x = 5,873,743.52

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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.