Home / 12,221,746.80-18,306,048.15-7,421,063.10

Finding the Fourth Proportional to 12,221,746.80, 18,306,048.15 and 7,421,063.10

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Solution

The fourth proportional to 12,221,746.80, 18,306,048.15 and 7,421,063.10 is: 11,115,460.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221,746.80 : 18,306,048.15 = 7,421,063.10 : x
  2. Step 2: Convert to fraction form
    12,221,746.80/18,306,048.15 = 7,421,063.10/x
  3. Step 3: Cross multiply
    12,221,746.80x = 18,306,048.15 × 7,421,063.10
  4. Step 4: Simplify right side
    12,221,746.80x = 135,850,338,432,788.25
  5. Step 5: Solve for x
    x = 135,850,338,432,788.25/12,221,746.80
  6. Step 6: Final answer
    x = 11,115,460.06

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1.5x scale

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.