Home / 817,890,698.90-1,226,804,555.55-272,632,232.90

Finding the Fourth Proportional to 817,890,698.90, 1,226,804,555.55 and 272,632,232.90

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Solution

The fourth proportional to 817,890,698.90, 1,226,804,555.55 and 272,632,232.90 is: 408,937,851.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,890,698.90 : 1,226,804,555.55 = 272,632,232.90 : x
  2. Step 2: Convert to fraction form
    817,890,698.90/1,226,804,555.55 = 272,632,232.90/x
  3. Step 3: Cross multiply
    817,890,698.90x = 1,226,804,555.55 × 272,632,232.90
  4. Step 4: Simplify right side
    817,890,698.90x = 334,466,465,311,488,576
  5. Step 5: Solve for x
    x = 334,466,465,311,488,576/817,890,698.90
  6. Step 6: Final answer
    x = 408,937,851.67

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Double scale
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1.5x scale

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.