Home / 21,505,206.40-32,257,809.60-21,355,907.20

Finding the Fourth Proportional to 21,505,206.40, 32,257,809.60 and 21,355,907.20

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Solution

The fourth proportional to 21,505,206.40, 32,257,809.60 and 21,355,907.20 is: 32,033,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505,206.40 : 32,257,809.60 = 21,355,907.20 : x
  2. Step 2: Convert to fraction form
    21,505,206.40/32,257,809.60 = 21,355,907.20/x
  3. Step 3: Cross multiply
    21,505,206.40x = 32,257,809.60 × 21,355,907.20
  4. Step 4: Simplify right side
    21,505,206.40x = 688,894,788,292,869.12
  5. Step 5: Solve for x
    x = 688,894,788,292,869.12/21,505,206.40
  6. Step 6: Final answer
    x = 32,033,860.80

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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.