Home / 31,369,965.60-47,054,948.40-8,340,855.60

Finding the Fourth Proportional to 31,369,965.60, 47,054,948.40 and 8,340,855.60

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Solution

The fourth proportional to 31,369,965.60, 47,054,948.40 and 8,340,855.60 is: 12,511,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369,965.60 : 47,054,948.40 = 8,340,855.60 : x
  2. Step 2: Convert to fraction form
    31,369,965.60/47,054,948.40 = 8,340,855.60/x
  3. Step 3: Cross multiply
    31,369,965.60x = 47,054,948.40 × 8,340,855.60
  4. Step 4: Simplify right side
    31,369,965.60x = 392,478,529,869,851
  5. Step 5: Solve for x
    x = 392,478,529,869,851/31,369,965.60
  6. Step 6: Final answer
    x = 12,511,283.40

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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.