Home / 817,890,712.40-1,226,804,575.80-272,632,246.40

Finding the Fourth Proportional to 817,890,712.40, 1,226,804,575.80 and 272,632,246.40

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Solution

The fourth proportional to 817,890,712.40, 1,226,804,575.80 and 272,632,246.40 is: 408,937,871.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,890,712.40 : 1,226,804,575.80 = 272,632,246.40 : x
  2. Step 2: Convert to fraction form
    817,890,712.40/1,226,804,575.80 = 272,632,246.40/x
  3. Step 3: Cross multiply
    817,890,712.40x = 1,226,804,575.80 × 272,632,246.40
  4. Step 4: Simplify right side
    817,890,712.40x = 334,466,487,394,153,024
  5. Step 5: Solve for x
    x = 334,466,487,394,153,024/817,890,712.40
  6. Step 6: Final answer
    x = 408,937,871.92

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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.