Home / 21,492,075.20-32,238,112.80-18,692,715.20

Finding the Fourth Proportional to 21,492,075.20, 32,238,112.80 and 18,692,715.20

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Solution

The fourth proportional to 21,492,075.20, 32,238,112.80 and 18,692,715.20 is: 28,039,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492,075.20 : 32,238,112.80 = 18,692,715.20 : x
  2. Step 2: Convert to fraction form
    21,492,075.20/32,238,112.80 = 18,692,715.20/x
  3. Step 3: Cross multiply
    21,492,075.20x = 32,238,112.80 × 18,692,715.20
  4. Step 4: Simplify right side
    21,492,075.20x = 602,617,861,155,874.50
  5. Step 5: Solve for x
    x = 602,617,861,155,874.50/21,492,075.20
  6. Step 6: Final answer
    x = 28,039,072.80

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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.