Home / 42,836,043.09-64,252,838.39-12,130,549.82

Finding the Fourth Proportional to 42,836,043.09, 64,252,838.39 and 12,130,549.82

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Solution

The fourth proportional to 42,836,043.09, 64,252,838.39 and 12,130,549.82 is: 18,195,477.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,836,043.09 : 64,252,838.39 = 12,130,549.82 : x
  2. Step 2: Convert to fraction form
    42,836,043.09/64,252,838.39 = 12,130,549.82/x
  3. Step 3: Cross multiply
    42,836,043.09x = 64,252,838.39 × 12,130,549.82
  4. Step 4: Simplify right side
    42,836,043.09x = 779,422,257,386,757
  5. Step 5: Solve for x
    x = 779,422,257,386,757/42,836,043.09
  6. Step 6: Final answer
    x = 18,195,477.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.