Home / 10,145,878.47-15,202,863.54-7,845,985.53

Finding the Fourth Proportional to 10,145,878.47, 15,202,863.54 and 7,845,985.53

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Solution

The fourth proportional to 10,145,878.47, 15,202,863.54 and 7,845,985.53 is: 11,756,640.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145,878.47 : 15,202,863.54 = 7,845,985.53 : x
  2. Step 2: Convert to fraction form
    10,145,878.47/15,202,863.54 = 7,845,985.53/x
  3. Step 3: Cross multiply
    10,145,878.47x = 15,202,863.54 × 7,845,985.53
  4. Step 4: Simplify right side
    10,145,878.47x = 119,281,447,349,404.58
  5. Step 5: Solve for x
    x = 119,281,447,349,404.58/10,145,878.47
  6. Step 6: Final answer
    x = 11,756,640.66

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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.