Home / 687,713,727.40-1,031,570,591.10-470,035,493.80

Finding the Fourth Proportional to 687,713,727.40, 1,031,570,591.10 and 470,035,493.80

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Solution

The fourth proportional to 687,713,727.40, 1,031,570,591.10 and 470,035,493.80 is: 705,053,240.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,713,727.40 : 1,031,570,591.10 = 470,035,493.80 : x
  2. Step 2: Convert to fraction form
    687,713,727.40/1,031,570,591.10 = 470,035,493.80/x
  3. Step 3: Cross multiply
    687,713,727.40x = 1,031,570,591.10 × 470,035,493.80
  4. Step 4: Simplify right side
    687,713,727.40x = 484,874,792,177,246,400
  5. Step 5: Solve for x
    x = 484,874,792,177,246,400/687,713,727.40
  6. Step 6: Final answer
    x = 705,053,240.70

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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.