Home / 12,938,745.32-17,855,518.46-7,137,443.51

Finding the Fourth Proportional to 12,938,745.32, 17,855,518.46 and 7,137,443.51

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Solution

The fourth proportional to 12,938,745.32, 17,855,518.46 and 7,137,443.51 is: 9,849,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,745.32 : 17,855,518.46 = 7,137,443.51 : x
  2. Step 2: Convert to fraction form
    12,938,745.32/17,855,518.46 = 7,137,443.51/x
  3. Step 3: Cross multiply
    12,938,745.32x = 17,855,518.46 × 7,137,443.51
  4. Step 4: Simplify right side
    12,938,745.32x = 127,442,754,358,963.77
  5. Step 5: Solve for x
    x = 127,442,754,358,963.77/12,938,745.32
  6. Step 6: Final answer
    x = 9,849,699.58

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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.