Home / 31,904,881.20-47,880,941.40-21,118,597.20

Finding the Fourth Proportional to 31,904,881.20, 47,880,941.40 and 21,118,597.20

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Solution

The fourth proportional to 31,904,881.20, 47,880,941.40 and 21,118,597.20 is: 31,693,530.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,904,881.20 : 47,880,941.40 = 21,118,597.20 : x
  2. Step 2: Convert to fraction form
    31,904,881.20/47,880,941.40 = 21,118,597.20/x
  3. Step 3: Cross multiply
    31,904,881.20x = 47,880,941.40 × 21,118,597.20
  4. Step 4: Simplify right side
    31,904,881.20x = 1,011,178,314,983,404
  5. Step 5: Solve for x
    x = 1,011,178,314,983,404/31,904,881.20
  6. Step 6: Final answer
    x = 31,693,530.17

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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.