Home / 28,620,636.02-39,518,647.08-21,994,729.28

Finding the Fourth Proportional to 28,620,636.02, 39,518,647.08 and 21,994,729.28

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Solution

The fourth proportional to 28,620,636.02, 39,518,647.08 and 21,994,729.28 is: 30,369,763.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620,636.02 : 39,518,647.08 = 21,994,729.28 : x
  2. Step 2: Convert to fraction form
    28,620,636.02/39,518,647.08 = 21,994,729.28/x
  3. Step 3: Cross multiply
    28,620,636.02x = 39,518,647.08 × 21,994,729.28
  4. Step 4: Simplify right side
    28,620,636.02x = 869,201,944,036,462.50
  5. Step 5: Solve for x
    x = 869,201,944,036,462.50/28,620,636.02
  6. Step 6: Final answer
    x = 30,369,763.39

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1.5x scale

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.