Home / 678,013,417.72-1,017,023,554.86-211,635,747

Finding the Fourth Proportional to 678,013,417.72, 1,017,023,554.86 and 211,635,747

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Solution

The fourth proportional to 678,013,417.72, 1,017,023,554.86 and 211,635,747 is: 317,454,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,013,417.72 : 1,017,023,554.86 = 211,635,747 : x
  2. Step 2: Convert to fraction form
    678,013,417.72/1,017,023,554.86 = 211,635,747/x
  3. Step 3: Cross multiply
    678,013,417.72x = 1,017,023,554.86 × 211,635,747
  4. Step 4: Simplify right side
    678,013,417.72x = 215,238,539,748,587,360
  5. Step 5: Solve for x
    x = 215,238,539,748,587,360/678,013,417.72
  6. Step 6: Final answer
    x = 317,454,690.60

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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.