Home / 25,671,121.20-38,506,681.80-19,960,426.80

Finding the Fourth Proportional to 25,671,121.20, 38,506,681.80 and 19,960,426.80

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Solution

The fourth proportional to 25,671,121.20, 38,506,681.80 and 19,960,426.80 is: 29,940,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,671,121.20 : 38,506,681.80 = 19,960,426.80 : x
  2. Step 2: Convert to fraction form
    25,671,121.20/38,506,681.80 = 19,960,426.80/x
  3. Step 3: Cross multiply
    25,671,121.20x = 38,506,681.80 × 19,960,426.80
  4. Step 4: Simplify right side
    25,671,121.20x = 768,609,803,379,792.25
  5. Step 5: Solve for x
    x = 768,609,803,379,792.25/25,671,121.20
  6. Step 6: Final answer
    x = 29,940,640.20

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Similar ratio
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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.