Home / 21,014,137.10-31,521,205.65-7,382,675.45

Finding the Fourth Proportional to 21,014,137.10, 31,521,205.65 and 7,382,675.45

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Solution

The fourth proportional to 21,014,137.10, 31,521,205.65 and 7,382,675.45 is: 11,074,013.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014,137.10 : 31,521,205.65 = 7,382,675.45 : x
  2. Step 2: Convert to fraction form
    21,014,137.10/31,521,205.65 = 7,382,675.45/x
  3. Step 3: Cross multiply
    21,014,137.10x = 31,521,205.65 × 7,382,675.45
  4. Step 4: Simplify right side
    21,014,137.10x = 232,710,831,106,656.28
  5. Step 5: Solve for x
    x = 232,710,831,106,656.28/21,014,137.10
  6. Step 6: Final answer
    x = 11,074,013.18

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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.