Home / 186,780,312.80-280,170,469.20-100,686,870.80

Finding the Fourth Proportional to 186,780,312.80, 280,170,469.20 and 100,686,870.80

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Solution

The fourth proportional to 186,780,312.80, 280,170,469.20 and 100,686,870.80 is: 151,030,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,780,312.80 : 280,170,469.20 = 100,686,870.80 : x
  2. Step 2: Convert to fraction form
    186,780,312.80/280,170,469.20 = 100,686,870.80/x
  3. Step 3: Cross multiply
    186,780,312.80x = 280,170,469.20 × 100,686,870.80
  4. Step 4: Simplify right side
    186,780,312.80x = 28,209,487,834,315,776
  5. Step 5: Solve for x
    x = 28,209,487,834,315,776/186,780,312.80
  6. Step 6: Final answer
    x = 151,030,306.20

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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.