Home / 817,890,707.40-1,226,804,568.30-272,632,241.40

Finding the Fourth Proportional to 817,890,707.40, 1,226,804,568.30 and 272,632,241.40

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Solution

The fourth proportional to 817,890,707.40, 1,226,804,568.30 and 272,632,241.40 is: 408,937,864.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,890,707.40 : 1,226,804,568.30 = 272,632,241.40 : x
  2. Step 2: Convert to fraction form
    817,890,707.40/1,226,804,568.30 = 272,632,241.40/x
  3. Step 3: Cross multiply
    817,890,707.40x = 1,226,804,568.30 × 272,632,241.40
  4. Step 4: Simplify right side
    817,890,707.40x = 334,466,479,215,388,352
  5. Step 5: Solve for x
    x = 334,466,479,215,388,352/817,890,707.40
  6. Step 6: Final answer
    x = 408,937,864.42

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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.