Home / 780,944,582.80-1,170,593,288.88-256,176,654.40

Finding the Fourth Proportional to 780,944,582.80, 1,170,593,288.88 and 256,176,654.40

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Solution

The fourth proportional to 780,944,582.80, 1,170,593,288.88 and 256,176,654.40 is: 383,994,817.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,944,582.80 : 1,170,593,288.88 = 256,176,654.40 : x
  2. Step 2: Convert to fraction form
    780,944,582.80/1,170,593,288.88 = 256,176,654.40/x
  3. Step 3: Cross multiply
    780,944,582.80x = 1,170,593,288.88 × 256,176,654.40
  4. Step 4: Simplify right side
    780,944,582.80x = 299,878,672,408,371,136
  5. Step 5: Solve for x
    x = 299,878,672,408,371,136/780,944,582.80
  6. Step 6: Final answer
    x = 383,994,817.32

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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.