Home / 13,438,312.88-18,546,446.17-7,637,966.52

Finding the Fourth Proportional to 13,438,312.88, 18,546,446.17 and 7,637,966.52

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Solution

The fourth proportional to 13,438,312.88, 18,546,446.17 and 7,637,966.52 is: 10,541,288.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,312.88 : 18,546,446.17 = 7,637,966.52 : x
  2. Step 2: Convert to fraction form
    13,438,312.88/18,546,446.17 = 7,637,966.52/x
  3. Step 3: Cross multiply
    13,438,312.88x = 18,546,446.17 × 7,637,966.52
  4. Step 4: Simplify right side
    13,438,312.88x = 141,657,134,911,442.22
  5. Step 5: Solve for x
    x = 141,657,134,911,442.22/13,438,312.88
  6. Step 6: Final answer
    x = 10,541,288.64

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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.