Home / 420,923,267.55-631,384,901.33-265,955,071.95

Finding the Fourth Proportional to 420,923,267.55, 631,384,901.33 and 265,955,071.95

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Solution

The fourth proportional to 420,923,267.55, 631,384,901.33 and 265,955,071.95 is: 398,932,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,923,267.55 : 631,384,901.33 = 265,955,071.95 : x
  2. Step 2: Convert to fraction form
    420,923,267.55/631,384,901.33 = 265,955,071.95/x
  3. Step 3: Cross multiply
    420,923,267.55x = 631,384,901.33 × 265,955,071.95
  4. Step 4: Simplify right side
    420,923,267.55x = 167,920,016,860,034,016
  5. Step 5: Solve for x
    x = 167,920,016,860,034,016/420,923,267.55
  6. Step 6: Final answer
    x = 398,932,607.93

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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.