Home / 687,745,266.90-1,031,617,900.35-470,067,033.30

Finding the Fourth Proportional to 687,745,266.90, 1,031,617,900.35 and 470,067,033.30

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Solution

The fourth proportional to 687,745,266.90, 1,031,617,900.35 and 470,067,033.30 is: 705,100,549.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,745,266.90 : 1,031,617,900.35 = 470,067,033.30 : x
  2. Step 2: Convert to fraction form
    687,745,266.90/1,031,617,900.35 = 470,067,033.30/x
  3. Step 3: Cross multiply
    687,745,266.90x = 1,031,617,900.35 × 470,067,033.30
  4. Step 4: Simplify right side
    687,745,266.90x = 484,929,565,916,699,584
  5. Step 5: Solve for x
    x = 484,929,565,916,699,584/687,745,266.90
  6. Step 6: Final answer
    x = 705,100,549.95

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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.