Home / 45,931,644.40-68,897,466.60-31,381,970.80

Finding the Fourth Proportional to 45,931,644.40, 68,897,466.60 and 31,381,970.80

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Solution

The fourth proportional to 45,931,644.40, 68,897,466.60 and 31,381,970.80 is: 47,072,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,931,644.40 : 68,897,466.60 = 31,381,970.80 : x
  2. Step 2: Convert to fraction form
    45,931,644.40/68,897,466.60 = 31,381,970.80/x
  3. Step 3: Cross multiply
    45,931,644.40x = 68,897,466.60 × 31,381,970.80
  4. Step 4: Simplify right side
    45,931,644.40x = 2,162,138,285,035,175.25
  5. Step 5: Solve for x
    x = 2,162,138,285,035,175.25/45,931,644.40
  6. Step 6: Final answer
    x = 47,072,956.20

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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.