Home / 15,128,004.02-20,878,394.56-8,423,011.94

Finding the Fourth Proportional to 15,128,004.02, 20,878,394.56 and 8,423,011.94

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Solution

The fourth proportional to 15,128,004.02, 20,878,394.56 and 8,423,011.94 is: 11,624,730.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,004.02 : 20,878,394.56 = 8,423,011.94 : x
  2. Step 2: Convert to fraction form
    15,128,004.02/20,878,394.56 = 8,423,011.94/x
  3. Step 3: Cross multiply
    15,128,004.02x = 20,878,394.56 × 8,423,011.94
  4. Step 4: Simplify right side
    15,128,004.02x = 175,858,966,541,461.56
  5. Step 5: Solve for x
    x = 175,858,966,541,461.56/15,128,004.02
  6. Step 6: Final answer
    x = 11,624,730.29

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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.