Home / 13,113,981-18,097,293.78-7,681,473

Finding the Fourth Proportional to 13,113,981, 18,097,293.78 and 7,681,473

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Solution

The fourth proportional to 13,113,981, 18,097,293.78 and 7,681,473 is: 10,600,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113,981 : 18,097,293.78 = 7,681,473 : x
  2. Step 2: Convert to fraction form
    13,113,981/18,097,293.78 = 7,681,473/x
  3. Step 3: Cross multiply
    13,113,981x = 18,097,293.78 × 7,681,473
  4. Step 4: Simplify right side
    13,113,981x = 139,013,873,544,137.95
  5. Step 5: Solve for x
    x = 139,013,873,544,137.95/13,113,981
  6. Step 6: Final answer
    x = 10,600,432.74

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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.